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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.

A240411 Number of nX6 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

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%I A240411 #5 Jun 02 2025 09:55:49
%S A240411 14,493,17075,773196,33373526,1615637679,74389514201,3790596926634,
%T A240411 180050906023325,9401180099632567,454863378057031995
%N A240411 Number of nX6 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.
%C A240411 Column 6 of A240412
%e A240411 Some solutions for n=3
%e A240411 ..3..2..2..2..2..2....3..2..2..2..3..2....3..2..2..2..3..3....3..2..3..2..3..3
%e A240411 ..2..1..1..1..0..0....2..0..1..0..1..2....2..0..0..0..3..2....3..0..1..1..3..2
%e A240411 ..1..3..3..1..1..0....1..0..2..2..0..2....3..1..2..0..1..0....1..0..0..2..2..3
%K A240411 nonn
%O A240411 1,1
%A A240411 _R. H. Hardin_, Apr 04 2014

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