login
A153985
Number of planar n X n X n binary triangular grids with every one adjacent to exactly 1 other one.
0
1, 1, 4, 10, 45, 327, 2795, 37386, 708255, 18674478, 714577926, 38756649867, 2991760323799, 329930606705391, 51795338953514297, 11590318613952416039, 3697221054959107433421, 1680594967102679237735428
OFFSET
0,3
CROSSREFS
Sequence in context: A155237 A155223 A155219 * A184481 A149227 A149228
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2009
STATUS
approved