A251291 Number of (n+1)X(7+1) 0..1 arrays with every 2X2 subblock having a single 1 or two 1s on the same edge or main diagonally

1691, 21966, 202882, 2645966, 25654154, 322933003, 3232216177, 39571705178, 405845538185, 4863503527792, 50827817852319, 599113339096458, 6352973392705472, 73931887999623433, 792828826324721512

Offset

1,1

Comments

Column 7 of A251292

Links

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

Example

Some solutions for n=2
..1..0..0..0..1..0..1..0....0..0..1..0..0..0..1..0....0..0..1..1..0..1..0..1
..0..0..1..0..1..0..1..0....1..0..0..0..1..0..0..1....1..0..0..0..0..0..0..0
..1..0..1..0..1..0..0..1....0..1..1..0..0..1..0..0....0..0..1..1..1..0..1..1

Crossrefs

Sequence in context: A065903 A204488 A062680 * A120564 A237533 A089674

Adjacent sequences: A251288 A251289 A251290 * A251292 A251293 A251294

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved