cp's OEIS Frontend

A302277 Number of n X 7 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

%I A302277 #7 Apr 05 2018 04:09:28
%S A302277 8,98,363,1621,14125,72083,384916,3027442,17837758,105323556,
%T A302277 739401390,4650704407,28941532526,193466816941,1245437720868,
%U A302277 7947521451749,52140138010011,338093540539006,2181939290185486,14220546200647229
%N A302277 Number of n X 7 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
%C A302277 Column 7 of A302278.
%H A302277 R. H. Hardin, <a href="/A302277/b302277.txt">Table of n, a(n) for n = 1..210</a>
%e A302277 Some solutions for n=5:
%e A302277   0 0 1 1 1 0 0     0 0 1 0 0 0 1     0 0 1 0 1 0 0
%e A302277   1 0 0 0 0 1 1     1 1 0 1 1 1 0     0 1 1 1 0 0 1
%e A302277   1 1 1 0 1 0 1     1 1 1 1 1 1 1     1 0 1 0 0 1 0
%e A302277   0 1 1 0 1 1 0     0 0 1 0 0 0 1     1 0 0 0 0 0 1
%e A302277   0 0 1 0 0 1 1     1 1 0 1 1 1 0     1 1 0 1 1 0 0
%Y A302277 Cf. A302278.
%K A302277 nonn
%O A302277 1,1
%A A302277 _R. H. Hardin_, Apr 04 2018