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A153537
Number of planar n X n X n binary triangular grids with no more than 3 ones in any 5 X 5 X 5 subtriangle.
0
1, 2, 8, 42, 176, 576, 4836, 66134, 1154324, 22094979, 473556087, 16081015577, 781788953511, 50068113839258
OFFSET
0,2
CROSSREFS
Sequence in context: A330870 A364707 A342152 * A153565 A153528 A153557
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2009
STATUS
approved