A302262 Number of nX5 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

16, 384, 3818, 40296, 429854, 4608075, 49315068, 527911860, 5651844495, 60512022539, 647867830591, 6936433466124, 74265480772198, 795130321189515, 8513145805873382, 91146924218701992, 975874666111418347

Offset

1,1

Comments

Column 5 of A302265.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 70

Formula

Empirical recurrence of order 70 (see link above)

Example

Some solutions for n=5
..0..0..0..1..0. .0..0..0..1..0. .0..0..1..0..0. .0..0..0..0..1
..0..1..1..0..1. .1..1..1..1..1. .0..0..1..1..0. .1..1..0..0..0
..0..1..0..0..1. .0..0..0..0..0. .1..0..1..0..0. .0..1..1..1..1
..1..1..1..1..0. .0..1..1..1..1. .1..0..1..0..1. .1..0..0..0..1
..0..0..0..0..1. .0..0..1..1..0. .0..0..1..0..0. .0..1..1..0..0

Crossrefs

Cf. A302265.

Sequence in context: A235442 A343213 A340689 * A302962 A302805 A303466

Adjacent sequences: A302259 A302260 A302261 * A302263 A302264 A302265

Keyword

nonn

Author

R. H. Hardin, Apr 04 2018

Status

approved