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A224280 Number of nX7 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing 1

%I #4 Apr 02 2013 14:43:10

%S 1163,180821,8626382,233090092,4728056658,86539248276,1597855917875,

%T 31198793873704,648539832987579,14190379537730766,321738654013526452,

%U 7458658599338643026,175162125039011466648,4143668812111247607851

%N Number of nX7 0..3 arrays with diagonals and rows unimodal and antidiagonals nondecreasing

%C Column 7 of A224281

%H R. H. Hardin, <a href="/A224280/b224280.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 02 2013

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Last modified September 12 04:22 EDT 2024. Contains 375842 sequences. (Running on oeis4.)