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A153522 Number of planar n X n X n binary triangular grids with no more than 2 ones in any 2 X 2 X 2 subtriangle. 0

%I #6 Apr 28 2021 00:02:00

%S 1,2,7,44,487,9548,330644,20241284,2189838823,418717329192,

%T 141498666489433,84510319691113604,89205606502160918487,

%U 166417820194039911511676,548697154280844534323051836

%N Number of planar n X n X n binary triangular grids with no more than 2 ones in any 2 X 2 X 2 subtriangle.

%K nonn

%O 0,2

%A _R. H. Hardin_, Jan 01 2009

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Last modified May 17 19:53 EDT 2024. Contains 372607 sequences. (Running on oeis4.)