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A153536 Number of planar n X n X n binary triangular grids with no more than 2 ones in any 5 X 5 X 5 subtriangle. 0
1, 2, 7, 22, 56, 121, 559, 3829, 29796, 227905, 1723385, 18876476, 276306337, 4897600562, 98699795096, 2252123820450, 63761990038679 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

CROSSREFS

Sequence in context: A131856 A283236 A007344 * A153564 A153527 A153556

Adjacent sequences:  A153533 A153534 A153535 * A153537 A153538 A153539

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2009

STATUS

approved

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Last modified May 15 23:51 EDT 2022. Contains 353687 sequences. (Running on oeis4.)