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 A297069 Number of nX4 0..1 arrays with no 1 adjacent to 1 king-move neighboring 1. 1
 8, 103, 1292, 16059, 214205, 2883705, 38753117, 521094462, 7010388932, 94315578610, 1268880776347, 17071093252066, 229669459832452, 3089905546013391, 41570682341645865, 559279797267154090 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A297073. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 15*a(n-1) -19*a(n-2) +9*a(n-3) -314*a(n-4) -2060*a(n-5) +2472*a(n-6) +13839*a(n-7) +10226*a(n-8) -11979*a(n-9) -23610*a(n-10) -6595*a(n-11) +10275*a(n-12) +14004*a(n-13) +13286*a(n-14) +2169*a(n-15) -5262*a(n-16) -4234*a(n-17) -6020*a(n-18) -2763*a(n-19) +1073*a(n-20) +538*a(n-21) +112*a(n-22) +96*a(n-23) EXAMPLE Some solutions for n=4 ..1..0..1..0. .0..1..0..0. .0..1..1..0. .0..1..1..0. .0..0..1..0 ..0..0..1..1. .1..1..1..1. .1..0..1..1. .1..0..0..1. .1..1..1..1 ..0..0..0..0. .1..1..0..1. .1..1..0..0. .0..1..1..1. .0..1..1..1 ..0..1..0..1. .1..0..1..1. .0..1..1..0. .1..1..1..1. .0..1..0..1 CROSSREFS Cf. A297073. Sequence in context: A328061 A305603 A333985 * A090237 A222664 A190786 Adjacent sequences:  A297066 A297067 A297068 * A297070 A297071 A297072 KEYWORD nonn AUTHOR R. H. Hardin, Dec 24 2017 STATUS approved

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Last modified January 28 13:34 EST 2022. Contains 350656 sequences. (Running on oeis4.)