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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.

A219475 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 5Xn array.

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%I A219475 #5 Jul 23 2025 00:30:29
%S A219475 56,619,32229,1306891,43792361,1222433026,29873644925,662533943916,
%T A219475 13515253913829,257247067131996,4617731855899377,78635760906475856,
%U A219475 1275140440612833310
%N A219475 Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 5Xn array.
%C A219475 Row 5 of A219471
%e A219475 Some solutions for n=3
%e A219475 ..0..0..1....0..0..1....0..0..2....1..1..1....0..0..0....2..2..2....2..2..3
%e A219475 ..0..0..1....1..1..3....0..0..2....1..1..3....0..2..3....2..1..1....2..2..0
%e A219475 ..0..0..1....2..2..2....0..0..2....1..1..0....2..2..2....2..0..0....0..0..0
%e A219475 ..2..1..1....2..2..2....0..0..2....0..0..0....2..2..2....2..0..1....0..0..0
%e A219475 ..3..1..3....3..2..3....0..0..3....0..0..1....2..1..1....3..1..3....0..1..3
%K A219475 nonn
%O A219475 1,1
%A A219475 _R. H. Hardin_ Nov 20 2012

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