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A153530
Number of planar n X n X n binary triangular grids with no more than 5 ones in any 4 X 4 X 4 subtriangle.
0
1, 2, 8, 63, 638, 13260, 500698, 33026810, 3689025606, 733848019638, 258222461905218, 159271690269225935
OFFSET
0,2
CROSSREFS
Sequence in context: A009271 A153539 A153567 * A153559 A193195 A098000
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2009
STATUS
approved