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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.

A206387 Number of nX6 0..6 arrays with no element equal to another within a city block distance of two, and new values 0..6 introduced in row major order.

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%I A206387 #6 Jul 22 2025 19:26:18
%S A206387 15,4801,868994,164270604,30809397399
%N A206387 Number of nX6 0..6 arrays with no element equal to another within a city block distance of two, and new values 0..6 introduced in row major order.
%C A206387 Column 6 of A206389
%e A206387 Some solutions for n=4
%e A206387 ..0..1..2..0..3..1....0..1..2..0..1..2....0..1..2..3..4..1....0..1..2..3..0..1
%e A206387 ..4..3..5..6..2..0....2..3..4..5..6..3....2..3..4..0..5..6....2..3..0..1..2..3
%e A206387 ..2..6..4..1..5..3....6..5..0..3..2..4....5..6..1..2..3..0....1..4..5..6..4..5
%e A206387 ..3..5..0..2..4..6....3..1..6..4..5..6....3..0..5..6..1..2....3..6..1..0..3..6
%K A206387 nonn
%O A206387 1,1
%A A206387 _R. H. Hardin_ Feb 07 2012

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