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A153568
Number of planar n X n X n binary triangular grids with no more than 6 ones in any similarly oriented 5 X 5 X 5 subtriangle.
1
1, 2, 8, 64, 848, 9949, 298247, 16406435, 1545911495, 236576023548, 58010755690276, 25220215282781623
OFFSET
0,2
CROSSREFS
Sequence in context: A139679 A005640 A153540 * A153531 A153560 A321059
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2009
STATUS
approved