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A154033 Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 2 X 2 X 2 subtriangle summing to 3. 0
10, 23, 31, 35, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27, 29, 27 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

COMMENTS

Pattern 27 29 starts at n=6 and continues through at least n=60.

EXAMPLE

Maximal zeros solution for n=6

.......0

......0.3

.....3.0.0

....0.0.3.0

...0.3.0.0.3

..3.0.0.3.0.0

CROSSREFS

Sequence in context: A015902 A054095 A125618 * A140674 A072245 A135277

Adjacent sequences:  A154030 A154031 A154032 * A154034 A154035 A154036

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 04 2009

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.