A302270 Number of 6 X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 2048, 23516, 353229, 4608075, 64975832, 893462062, 12314612510, 170772674650, 2358411011162, 32642910388558, 451854951125666, 6252677767027315, 86568880314498494, 1198444427129769914

Offset

1,1

Comments

Row 6 of A302265.

Links

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

Example

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

Crossrefs

Cf. A302265.

Sequence in context: A323540 A304123 A291826 * A301846 A302969 A302073

Adjacent sequences: A302267 A302268 A302269 * A302271 A302272 A302273

Keyword

nonn

Author

R. H. Hardin, Apr 04 2018

Status

approved