The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A265177

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A265177

Number of n X 5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and vertical neighbors by a power of two.
(history; published version)

#11 by Michael De Vlieger at Sat Jan 27 16:27:50 EST 2024

STATUS

reviewed

approved

#10 by Andrew Howroyd at Sat Jan 27 16:26:25 EST 2024

STATUS

proposed

reviewed

#9 by Stefano Spezia at Sat Jan 27 16:00:36 EST 2024

STATUS

editing

proposed

#8 by Stefano Spezia at Sat Jan 27 15:17:51 EST 2024

DATA

16, 8463, 7796840, 19256175024, 62221755947285, 29140746691543180, 114300945033974982113, 143026744640969922998778, 665211626399246015524893315, 1103575752619261180934292157487, 3455181481764546173131937070949479, 4571072289935266583762051509912780981

#7 by Stefano Spezia at Sat Jan 27 15:15:52 EST 2024

EXAMPLE

Some solutions for n=2:

STATUS

approved

editing

#6 by Wesley Ivan Hurt at Sun Apr 17 22:18:51 EDT 2022

STATUS

editing

approved

#5 by Wesley Ivan Hurt at Sun Apr 17 22:18:47 EDT 2022

NAME

Number of nX5 n X 5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and vertical neighbors by a power of two.

STATUS

approved

editing

#4 by R. H. Hardin at Thu Dec 03 12:19:09 EST 2015

STATUS

editing

approved

#3 by R. H. Hardin at Thu Dec 03 12:19:02 EST 2015

LINKS

R. H. Hardin, <a href="/A265177/b265177.txt">Table of n, a(n) for n = 1..13</a>

#2 by R. H. Hardin at Thu Dec 03 12:18:46 EST 2015

NAME

allocated for R. H. Hardin

Number of nX5 0..n*5-1 arrays with upper left zero and lower right n*5-1 and each element differing from its horizontal and vertical neighbors by a power of two.

DATA

16, 8463, 7796840, 19256175024, 62221755947285, 29140746691543180, 114300945033974982113, 143026744640969922998778, 665211626399246015524893315, 1103575752619261180934292157487

OFFSET

1,1

COMMENTS

Column 5 of A265178.

EXAMPLE

Some solutions for n=2

..0..4..2..4..8....0..4..6..5..7....0..4..5..6..5....0..4..3..5..1

..2..3..4..5..9....2..3..5..1..9....4..8..9..5..9....2..6..5..7..9

CROSSREFS

Cf. A265178.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Dec 03 2015

STATUS

approved

editing