A317462 Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

0, 61, 636, 16809, 386855, 9178195, 217053933, 5142922330, 121842389647, 2886923933239, 68403529968491, 1620780281086663, 38403475477325272, 909949365172380123, 21560755938721401485, 510870432814905398479

Offset

1,2

Comments

Column 5 of A317465.

Links

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

R. H. Hardin, Empirical recurrence of order 61

Formula

Empirical recurrence of order 61 (see link above)

Example

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

Crossrefs

Cf. A317465.

Sequence in context: A316508 A068850 A142667 * A283869 A173805 A092571

Adjacent sequences: A317459 A317460 A317461 * A317463 A317464 A317465

Keyword

nonn

Author

R. H. Hardin, Jul 28 2018

Status

approved