A153528 Number of planar n X n X n binary triangular grids with no more than 3 ones in any 4 X 4 X 4 subtriangle.

1, 2, 8, 42, 176, 1656, 25535, 536768, 14123143, 595925622, 38030336629, 3481512865400, 454136719811653, 87600895347244742

Offset

0,2

Links

Table of n, a(n) for n=0..13.

Crossrefs

Sequence in context: A342152 A153537 A153565 * A153557 A231103 A114204

Adjacent sequences: A153525 A153526 A153527 * A153529 A153530 A153531

Keyword

nonn

Author

R. H. Hardin, Jan 01 2009

Status

approved