A302962 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
16, 384, 3924, 43588, 493132, 5602382, 63612987, 722646394, 8212135689, 93333017966, 1060806235030, 12057365898916, 137049471727976, 1557782741219620, 17706765695523787, 201267276363226847
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..1..1. .0..0..0..0..1. .0..0..0..0..1. .0..0..1..0..0 ..1..0..1..0..1. .0..1..1..1..0. .1..1..1..0..0. .0..0..0..0..1 ..0..0..1..0..1. .0..1..0..0..0. .1..0..0..1..1. .1..0..1..0..0 ..0..1..0..1..0. .1..1..1..1..1. .1..1..0..0..1. .1..0..1..0..1 ..1..1..0..0..1. .0..0..1..0..0. .0..1..1..0..0. .1..1..0..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 80
Crossrefs
Cf. A302965.
Formula
Empirical recurrence of order 80 (see link above)
Comments