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A153536
Number of planar n X n X n binary triangular grids with no more than 2 ones in any 5 X 5 X 5 subtriangle.
0
1, 2, 7, 22, 56, 121, 559, 3829, 29796, 227905, 1723385, 18876476, 276306337, 4897600562, 98699795096, 2252123820450, 63761990038679
OFFSET
0,2
CROSSREFS
Sequence in context: A131856 A283236 A007344 * A153564 A153527 A153556
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2009
STATUS
approved