A153534 Number of planar n X n X n binary triangular grids with no more than 9 ones in any 4 X 4 X 4 subtriangle.

1, 2, 8, 64, 1023, 32677, 2085852, 265905471, 67702906842, 34428713143699, 34967745692003325, 70932850637566775944, 287382410206743743063615, 2325444305225035139666787461, 37582415776409927622720679966198

Offset

0,2

Links

Table of n, a(n) for n=0..14.

Crossrefs

Sequence in context: A086789 A066537 A084280 * A153563 A178169 A191572

Adjacent sequences: A153531 A153532 A153533 * A153535 A153536 A153537

Keyword

nonn

Author

R. H. Hardin, Jan 01 2009

Status

approved