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A297454 Number of nX5 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s. 1
13, 156, 1143, 10579, 97005, 862112, 7800563, 70510494, 636242985, 5748756544, 51939316305, 469229062104, 4239543728876, 38304792722218, 346088290423542, 3126976424671238, 28252874739113446, 255270676137336183 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A297457.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = 13*a(n-1) -36*a(n-2) +65*a(n-3) -798*a(n-4) +2160*a(n-5) -1872*a(n-6) +8488*a(n-7) -16755*a(n-8) +6838*a(n-9) -33024*a(n-10) +45383*a(n-11) +3639*a(n-12) +47582*a(n-13) -40877*a(n-14) -37374*a(n-15) -4880*a(n-16) -10986*a(n-17) +50266*a(n-18) -32259*a(n-19) +30045*a(n-20) -25746*a(n-21) +17456*a(n-22) -9542*a(n-23) +2835*a(n-24) -1578*a(n-25) +860*a(n-26) -144*a(n-27)

EXAMPLE

Some solutions for n=5

..0..0..0..0..0. .0..1..0..0..0. .1..0..0..0..0. .0..1..0..1..0

..1..0..0..0..1. .0..0..0..1..0. .0..0..0..0..1. .0..0..0..0..0

..0..0..0..0..1. .0..1..0..0..0. .1..1..1..0..0. .0..1..0..1..0

..0..1..0..0..1. .0..0..0..0..0. .0..1..0..0..0. .0..0..0..0..0

..0..1..0..0..1. .0..0..0..0..1. .0..1..0..0..1. .1..0..0..0..1

CROSSREFS

Cf. A297457.

Sequence in context: A163415 A077416 A192092 * A102146 A162768 A097827

Adjacent sequences:  A297451 A297452 A297453 * A297455 A297456 A297457

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 30 2017

STATUS

approved

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Last modified August 19 07:06 EDT 2019. Contains 326115 sequences. (Running on oeis4.)