A183334 Number of n X 6 binary arrays with each 1 adjacent to exactly two 0's.

8, 98, 534, 3254, 21708, 135578, 863096, 5518572, 35095832, 223543018, 1424141918, 9069450042, 57765518688, 367927491536, 2343383959002, 14925484493108, 95063475440328, 605477794684548, 3856408602298962, 24562234175026876

Offset

1,1

Comments

Column 6 of A183335.

Links

Robert Israel, Table of n, a(n) for n = 1..1242

Robert Israel, Linear recurrence of order 98

Robert Israel, Maple-assisted derivation of recurrence

Formula

Linear recurrence of order 98: see link. - Robert Israel, May 19 2020

Example

Some solutions for 4 X 6
..0..0..0..1..0..0....0..1..0..0..1..0....0..0..0..0..0..0....0..0..0..0..1..0
..0..0..0..1..1..0....0..1..0..0..1..1....0..1..1..0..0..1....0..0..0..0..1..0
..0..0..0..0..1..1....0..1..1..0..0..0....0..1..1..0..0..1....1..1..1..1..1..0
..0..0..0..0..0..0....1..0..1..0..0..1....1..0..0..0..0..0....0..0..0..0..0..0

Crossrefs

Cf. A183335.

Sequence in context: A302277 A302727 A116267 * A196327 A116130 A302527

Adjacent sequences: A183331 A183332 A183333 * A183335 A183336 A183337

Keyword

nonn

Author

R. H. Hardin, Jan 03 2011

Status

approved