A153532 Number of planar n X n X n binary triangular grids with no more than 7 ones in any 4 X 4 X 4 subtriangle.

1, 2, 8, 64, 968, 28776, 1665065, 186775857, 40576650722, 17097010684006, 13970781527118884, 22134691041539759364, 67990421653342264227292

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Crossrefs

Sequence in context: A085658 A153541 A153569 * A153561 A192413 A194456

Adjacent sequences: A153529 A153530 A153531 * A153533 A153534 A153535

Keyword

nonn

Author

R. H. Hardin, Jan 01 2009

Status

approved