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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
1
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; listen)
OFFSET

2,1
COMMENT

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 this_sequence A140674 A072245 A135277

Adjacent sequences: A154030 A154031 A154032 this_sequence A154034 A154035 A154036

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Jan 04 2009

page 1

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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