A038468 -id:A038468

Search: a038468 -id:a038468

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page 1

A038464

Sums of 2 distinct powers of 3.

+10
9

4, 10, 12, 28, 30, 36, 82, 84, 90, 108, 244, 246, 252, 270, 324, 730, 732, 738, 756, 810, 972, 2188, 2190, 2196, 2214, 2268, 2430, 2916, 6562, 6564, 6570, 6588, 6642, 6804, 7290, 8748, 19684, 19686, 19692, 19710, 19764, 19926, 20412, 21870, 26244, 59050, 59052

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Sort[Plus @@@ Subsets[3^Range[0, 10], {2}]] (* Amiram Eldar, Jul 13 2022 *)

CROSSREFS

Base-3 interpretation of A038444.

Cf. A000244, A038465, A038466, A038467, A038468, A038469.

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

EXTENSIONS

Offset corrected by Amiram Eldar, Jul 13 2022

STATUS

approved

A038465

Sums of 3 distinct powers of 3.

+10
7

13, 31, 37, 39, 85, 91, 93, 109, 111, 117, 247, 253, 255, 271, 273, 279, 325, 327, 333, 351, 733, 739, 741, 757, 759, 765, 811, 813, 819, 837, 973, 975, 981, 999, 1053, 2191, 2197, 2199, 2215, 2217, 2223, 2269, 2271, 2277, 2295, 2431, 2433, 2439, 2457, 2511, 2917

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Total/@Subsets[3^Range[0, 10], {3}]//Union (* Harvey P. Dale, Jul 10 2017 *)

CROSSREFS

Base 3 interpretation of A038445.

Cf. A000244, A038464, A038466, A038467, A038468, A038469.

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

EXTENSIONS

Offset corrected by Amiram Eldar, Jul 13 2022

STATUS

approved

A038466

Sums of 4 distinct powers of 3.

+10
6

40, 94, 112, 118, 120, 256, 274, 280, 282, 328, 334, 336, 352, 354, 360, 742, 760, 766, 768, 814, 820, 822, 838, 840, 846, 976, 982, 984, 1000, 1002, 1008, 1054, 1056, 1062, 1080, 2200, 2218, 2224, 2226, 2272, 2278, 2280, 2296, 2298, 2304, 2434, 2440, 2442, 2458

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Sort[Plus @@@ Subsets[3^Range[0, 7], {4}]] (* Amiram Eldar, Jul 13 2022 *)

CROSSREFS

Base 3 interpretation of A038446.

Cf. A000244, A038464, A038465, A038467, A038468, A038469.

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

EXTENSIONS

Offset corrected by Amiram Eldar, Jul 13 2022

STATUS

approved

A038467

Sums of 5 distinct powers of 3.

+10
6

121, 283, 337, 355, 361, 363, 769, 823, 841, 847, 849, 985, 1003, 1009, 1011, 1057, 1063, 1065, 1081, 1083, 1089, 2227, 2281, 2299, 2305, 2307, 2443, 2461, 2467, 2469, 2515, 2521, 2523, 2539, 2541, 2547, 2929, 2947, 2953, 2955, 3001, 3007, 3009, 3025, 3027, 3033

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Union[Total/@Subsets[3^Range[0, 7], {5}]] (* Harvey P. Dale, Feb 23 2011 *)

CROSSREFS

Base 3 interpretation of A038447.

Cf. A000244, A038464, A038465, A038466, A038468, A038469.

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

STATUS

approved

A038469

Sums of 7 distinct powers of 3.

+10
6

1093, 2551, 3037, 3199, 3253, 3271, 3277, 3279, 6925, 7411, 7573, 7627, 7645, 7651, 7653, 8869, 9031, 9085, 9103, 9109, 9111, 9517, 9571, 9589, 9595, 9597, 9733, 9751, 9757, 9759, 9805, 9811, 9813, 9829, 9831, 9837, 20047, 20533, 20695, 20749, 20767, 20773, 20775

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

MATHEMATICA

Sort[Plus @@@ Subsets[3^Range[0, 8], {7}]] (* Amiram Eldar, Jul 13 2022 *)

CROSSREFS

Base 3 interpretation of A038449.

Cf. A000244, A038464, A038465, A038466, A038467, A038468.

KEYWORD

nonn,easy