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A251827 Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum not 3 or 6 and every diagonal and antidiagonal sum 3 or 6 1

%I #4 Dec 09 2014 12:51:20

%S 160322,1095314,12830794,60427490,951770218,12583469514,56477451898,

%T 971710872170,13469722571314,58074471696954,1056264647119474,

%U 14968881307527330,63216797183919018,1182333190651608594

%N Number of (n+2)X(6+2) 0..3 arrays with every 3X3 subblock row and column sum not 3 or 6 and every diagonal and antidiagonal sum 3 or 6

%C Column 6 of A251829

%H R. H. Hardin, <a href="/A251827/b251827.txt">Table of n, a(n) for n = 1..210</a>

%H R. H. Hardin, <a href="/A251827/a251827.txt">Empirical recurrence of order 79</a>

%F Empirical recurrence of order 79 (see link above)

%e Some solutions for n=1

%e ..0..3..2..3..0..2..3..3....0..0..2..3..0..2..0..3....0..0..2..0..0..2..2..1

%e ..1..1..0..1..1..0..1..1....0..1..3..1..1..3..1..1....0..0..2..3..3..3..2..2

%e ..0..3..2..0..0..2..3..3....0..0..2..0..0..2..0..0....1..1..3..1..1..3..0..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 09 2014

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)