cp's OEIS Frontend

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.

A231937 Number of n X 4 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

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%I A231937 #6 Dec 27 2023 00:38:43
%S A231937 50,5070,206808,11159202,518972238,23280281589,1098832065447,
%T A231937 52087504055935,2432351670277323,113769979092350975,
%U A231937 5346219822861215921,250967014555486774293,11767760181894477862270,552098639482903392844421
%N A231937 Number of n X 4 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.
%C A231937 Column 4 of A231940.
%H A231937 R. H. Hardin, <a href="/A231937/b231937.txt">Table of n, a(n) for n = 1..210</a>
%e A231937 Some solutions for n=3
%e A231937 ..2..0..0..0....0..1..0..0....0..0..0..1....2..0..0..0....0..0..2..2
%e A231937 ..0..2..0..3....2..0..2..1....3..0..0..0....0..0..0..0....0..0..2..3
%e A231937 ..3..0..3..1....2..2..0..0....2..2..2..1....2..0..1..0....0..0..0..1
%Y A231937 Cf. A231940.
%K A231937 nonn
%O A231937 1,1
%A A231937 _R. H. Hardin_, Nov 15 2013