A300212 Number of n X 5 0..1 arrays with every element equal to 0, 1, 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
16, 512, 11965, 298600, 7452385, 186427449, 4666136435, 116802113451, 2923892905217, 73194247560765, 1832287164688910, 45868072086086527, 1148226402670943944, 28743827399125599775, 719551149215186260057
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 ..0..0..0..1..0. .0..0..1..0..0. .0..1..0..1..0. .0..1..0..1..1 ..1..1..1..0..0. .1..1..0..1..1. .1..1..0..1..0. .0..1..0..1..0 ..1..0..0..1..1. .1..1..0..1..1. .0..0..1..0..1. .1..1..0..0..1 ..1..0..1..1..1. .1..0..0..0..0. .0..0..1..0..1. .0..1..0..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 89
Crossrefs
Cf. A300215.
Formula
Empirical recurrence of order 89 (see link above).
Comments