A221113 Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without 2-loops

0, 918, 693362, 423897591, 247812858484, 143089274586815, 82293038769560932, 47263482187396234364, 27131873384164883422574

Offset

1,2

Comments

Column 7 of A221114

Links

Table of n, a(n) for n=1..9.

Example

Some solutions for n=3
..0..2..2..0..0..0..1....0..2..2..2..1..1..1....0..2..1..0..2..1..1
..0..2..1..1..2..3..0....0..0..1..1..1..3..1....0..2..1..3..1..1..1
..0..1..1..2..2..1..0....0..1..1..1..1..1..0....0..0..1..1..1..2..0

Crossrefs

Sequence in context: A221387 A217226 A217344 * A062335 A179673 A082518

Adjacent sequences: A221110 A221111 A221112 * A221114 A221115 A221116

Keyword

nonn

Author

R. H. Hardin Jan 02 2013

Status

approved