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A154078 Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 4 X 4 X 4 subtriangle summing to 10. 0
378, 3930, 3121, 12164, 6241, 21168, 6550, 13276, 3181, 6207, 1260, 3165, 1024, 3226, 983, 2793, 935, 3076, 935, 2781, 935, 3076, 935, 2781, 935, 3076, 935, 2781, 935, 3076, 935, 2781, 935, 3076, 935, 2781, 935, 3076, 935, 2781, 935, 3076, 935, 2781, 935, 3076 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

COMMENTS

Pattern 935 3076 935 2781 starts at n=20 and continues through at least n=52.

LINKS

Table of n, a(n) for n=4..49.

CROSSREFS

Sequence in context: A224337 A239174 A235761 * A047632 A033699 A235544

Adjacent sequences:  A154075 A154076 A154077 * A154079 A154080 A154081

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 04 2009

STATUS

approved

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Last modified August 9 01:18 EDT 2022. Contains 356016 sequences. (Running on oeis4.)