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A224259 Number of nX5 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing 1

%I

%S 86,1600,12032,59855,238366,816361,2485967,6868203,17467782,41364960,

%T 92057680,194025959,389786452,750442433,1391017095,2492190125,

%U 4330442992,7319061332,12062947260,19430764421,30648578146,47419866241,72077566743

%N Number of nX5 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing

%C Column 5 of A224262

%H R. H. Hardin, <a href="/A224259/b224259.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = (1009/907200)*n^10 + (1489/181440)*n^9 + (6571/60480)*n^8 + (18937/30240)*n^7 + (148447/43200)*n^6 + (74281/8640)*n^5 + (10535767/181440)*n^4 + (1477907/45360)*n^3 + (1282339/25200)*n^2 - (151027/252)*n + 913 for n>4

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 02 2013

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Last modified August 12 19:39 EDT 2022. Contains 356077 sequences. (Running on oeis4.)