A153571 Number of planar n X n X n binary triangular grids with no more than 9 ones in any similarly oriented 5 X 5 X 5 subtriangle.

1, 2, 8, 64, 1023, 27824, 1518130, 161027087, 32975856442, 12956875592101, 9739126432448652

Offset

0,2

Links

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

Crossrefs

Sequence in context: A273256 A192414 A153543 * A086789 A066537 A084280

Adjacent sequences: A153568 A153569 A153570 * A153572 A153573 A153574

Keyword

nonn

Author

R. H. Hardin, Jan 01 2009

Status

approved