A100031 - OEIS

A100031

Bisection of A005384.

2, 5, 23, 41, 83, 113, 173, 191, 239, 281, 359, 431, 491, 593, 653, 683, 743, 809, 953, 1019, 1049, 1223, 1289, 1439, 1481, 1511, 1583, 1733, 1889, 1931, 2003, 2063, 2129, 2273, 2351, 2399, 2543, 2693, 2741, 2819, 2939, 2969, 3299, 3359, 3413, 3491, 3593

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..46.

MAPLE

A:={}: for n from 1 to 608 do if isprime(2*ithprime(n)+1)=true then A:=A union {ithprime(n)} else A:=A fi od: B:=convert(A, list): seq(B[2*j-1], j=1..nops(B)/2);

CROSSREFS

Sequence in context: A141181 A191030 A233074 * A293213 A215278 A126975

Adjacent sequences: A100028 A100029 A100030 * A100032 A100033 A100034

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Nov 20 2004

EXTENSIONS

More terms from Emeric Deutsch, Dec 09 2004

STATUS

approved