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A283547 Number of 6 X n 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors. 1
64, 865, 11903, 212441, 3109801, 49760703, 778500603, 12138454363, 190697594765, 2981305027073, 46699964946725, 731254394756071, 11448471780244973, 179273800555060661, 2806951682109450395, 43951230865695709519 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 6 of A283543.
LINKS
FORMULA
Empirical: a(n) = 4*a(n-1) +112*a(n-2) +1000*a(n-3) +1188*a(n-4) +8430*a(n-5) -25129*a(n-6) +130799*a(n-7) -1528560*a(n-8) +4041468*a(n-9) -17343998*a(n-10) +42451694*a(n-11) -62908231*a(n-12) +202909175*a(n-13) -27180540*a(n-14) +102297648*a(n-15) -429724674*a(n-16) -1163099755*a(n-17) -2068007852*a(n-18) -2469159*a(n-19) -231955725*a(n-20) +1878145748*a(n-21) +2038664058*a(n-22) +7678354062*a(n-23) +3388259352*a(n-24) -128042672*a(n-25) -2578156694*a(n-26) -1566987104*a(n-27) -2871003712*a(n-28) -5800943360*a(n-29) -2846517248*a(n-30) -1244282880*a(n-31) -180224*a(n-32).
EXAMPLE
Some solutions for n=3
..0..0..1. .0..1..0. .0..0..0. .0..1..1. .0..1..0. .1..0..1. .1..0..1
..1..0..1. .0..0..0. .0..0..0. .0..0..0. .0..0..1. .0..0..0. .1..0..1
..0..0..1. .0..0..0. .0..1..0. .1..0..0. .0..0..0. .1..0..1. .0..0..0
..1..0..0. .0..1..0. .0..1..0. .1..0..0. .1..0..1. .1..0..0. .0..1..0
..1..0..1. .0..0..0. .0..0..0. .0..0..1. .1..0..1. .1..0..0. .0..0..0
..0..0..0. .0..0..1. .1..0..1. .0..0..1. .1..0..1. .0..1..0. .0..0..0
CROSSREFS
Cf. A283543.
Sequence in context: A232001 A185299 A250281 * A297686 A292028 A306613
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 10 2017
STATUS
approved

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Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)