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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A224122 Number of nX4 0..3 arrays with row sums nondecreasing and column sums unimodal.

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%I A224122 #5 Jul 23 2025 05:00:01
%S A224122 130,16782,1703178,145901795,11066001160,766386005577,49489265853382,
%T A224122 3023718149469925,176685707320506238,9953671018445272136
%N A224122 Number of nX4 0..3 arrays with row sums nondecreasing and column sums unimodal.
%C A224122 Column 4 of A224123
%e A224122 Some solutions for n=3
%e A224122 ..0..2..3..0....2..0..0..1....2..2..0..0....0..2..3..0....2..2..1..0
%e A224122 ..2..2..0..1....2..2..2..0....0..3..3..2....2..0..2..2....2..3..1..0
%e A224122 ..2..1..1..3....2..2..2..0....2..2..2..2....2..3..1..2....2..2..1..3
%K A224122 nonn
%O A224122 1,1
%A A224122 _R. H. Hardin_ Mar 31 2013

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