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.

A302149 Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

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%I A302149 #4 Apr 02 2018 14:27:19
%S A302149 1,10,88,1038,12212,145150,1728734,20614702,245896061,2933505447,
%T A302149 34997746793,417542364526,4981538616301,59432971386326,
%U A302149 709074352774052,8459725853179692,100930145043164198,1204163804664423408
%N A302149 Number of nX7 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.
%C A302149 Column 7 of A302150.
%H A302149 R. H. Hardin, <a href="/A302149/b302149.txt">Table of n, a(n) for n = 1..210</a>
%H A302149 R. H. Hardin, <a href="/A302149/a302149.txt">Empirical recurrence of order 51</a>
%F A302149 Empirical recurrence of order 51 (see link above)
%e A302149 Some solutions for n=5
%e A302149 ..0..1..0..1..1..1..1. .0..1..1..1..1..1..1. .0..1..1..0..0..0..0
%e A302149 ..0..1..1..0..1..1..0. .1..1..1..1..0..1..0. .1..1..0..0..0..0..1
%e A302149 ..1..1..1..1..1..1..0. .0..1..1..1..1..1..1. .1..1..1..1..0..0..1
%e A302149 ..1..1..1..0..1..1..1. .0..1..0..1..1..1..0. .1..1..1..0..0..0..0
%e A302149 ..1..1..1..1..1..1..0. .1..1..1..1..0..1..0. .1..1..0..0..0..0..1
%Y A302149 Cf. A302150.
%K A302149 nonn
%O A302149 1,2
%A A302149 _R. H. Hardin_, Apr 02 2018