The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A153522 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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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.
(history; published version)

#6 by Jon E. Schoenfield at Wed Apr 28 00:02:00 EDT 2021

STATUS

editing

approved

#5 by Jon E. Schoenfield at Wed Apr 28 00:01:58 EDT 2021

AUTHOR

R. H. Hardin ,, Jan 01 2009

#4 by Jon E. Schoenfield at Wed Apr 28 00:01:49 EDT 2021

AUTHOR

R. H. Hardin ,Jan 01 2009

STATUS

approved

editing

#3 by Russ Cox at Sat Mar 31 12:35:19 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Jan 01 2009

Discussion

Sat Mar 31

12:35

OEIS Server: https://oeis.org/edit/global/875

#2 by N. J. A. Sloane at Sat Oct 02 03:00:00 EDT 2010

KEYWORD

nonn,new

nonn

AUTHOR

Ron R. H. Hardin (rhhardin(AT)att.net) Jan 01 2009

#1 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

NAME

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.

DATA

1, 2, 7, 44, 487, 9548, 330644, 20241284, 2189838823, 418717329192, 141498666489433, 84510319691113604, 89205606502160918487, 166417820194039911511676, 548697154280844534323051836

OFFSET

0,2

KEYWORD

nonn,new

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Jan 01 2009

STATUS

approved