A284163 Number of n X 6 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
19, 467, 21790, 1142173, 63520018, 3648835932, 213897742464, 12712253739523, 762954434250117, 46132889929802552, 2805893251846100894, 171472537110465965686, 10520216685129431413147, 647576935194197811151494
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..1..0..1..0..0. .0..1..0..1..1..1. .0..0..0..0..1..1. .0..1..0..1..1..1 ..0..1..1..0..0..0. .0..1..1..1..1..1. .0..1..1..1..0..1. .1..0..0..0..1..1 ..1..1..1..0..0..0. .0..0..0..1..1..1. .1..1..1..0..0..0. .1..0..0..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..40
Crossrefs
Cf. A284165.
Comments