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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A226458 A330870 A342152 * A153565 A153528 A153557

Adjacent sequences:  A153534 A153535 A153536 * A153538 A153539 A153540

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2009

STATUS

approved

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Last modified November 27 09:19 EST 2021. Contains 349365 sequences. (Running on oeis4.)