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A295844 Number of nX5 0..1 arrays with each 1 adjacent to 1 or 2 king-move neighboring 1s. 1
12, 261, 2197, 26544, 333366, 3804661, 45214991, 538013975, 6343699611, 75116234061, 889359542764, 10520942085903, 124514937309050, 1473580659681018, 17437858397776247, 206362921178436157 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A295847.

LINKS

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

FORMULA

Empirical: a(n) = 11*a(n-1) -5*a(n-2) +300*a(n-3) -1643*a(n-4) +3417*a(n-5) -18172*a(n-6) +29603*a(n-7) -51257*a(n-8) +272523*a(n-9) -231977*a(n-10) +788764*a(n-11) -1381225*a(n-12) -732835*a(n-13) -1386114*a(n-14) -242317*a(n-15) +6665186*a(n-16) -996047*a(n-17) -5648781*a(n-18) -1391422*a(n-19) +3035557*a(n-20) -1545121*a(n-21) +7440631*a(n-22) +821652*a(n-23) -9685076*a(n-24) +1807195*a(n-25) +1576716*a(n-26) -1619373*a(n-27) +2387619*a(n-28) -243797*a(n-29) -34093*a(n-30) +253787*a(n-31) -60395*a(n-32) +22182*a(n-33) +4856*a(n-34) -600*a(n-35)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A295847.

Sequence in context: A297717 A352971 A138451 * A113672 A259269 A035265

Adjacent sequences:  A295841 A295842 A295843 * A295845 A295846 A295847

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 29 2017

STATUS

approved

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Last modified May 24 14:36 EDT 2022. Contains 354037 sequences. (Running on oeis4.)