A153539 Number of planar n X n X n binary triangular grids with no more than 5 ones in any 5 X 5 X 5 subtriangle.

1, 2, 8, 63, 638, 4944, 104377, 3900818, 230133234, 19379328080, 2310958437036

Offset

0,2

Links

Table of n, a(n) for n=0..10.

Crossrefs

Sequence in context: A227160 A191604 A009271 * A153567 A153530 A153559

Adjacent sequences: A153536 A153537 A153538 * A153540 A153541 A153542

Keyword

nonn

Author

R. H. Hardin, Jan 01 2009

Status

approved