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A153564
Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 5 X 5 X 5 subtriangle.
0
1, 2, 7, 22, 56, 121, 603, 4292, 34905, 284158, 2388099, 29265021, 473031984, 9304582753, 212580151667, 5654131835907, 189056293870086, 7909530731661434
OFFSET
0,2
CROSSREFS
Sequence in context: A283236 A007344 A153536 * A153527 A153556 A323228
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2009
STATUS
approved