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A038302 Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*12^j. 0
1, 9, 12, 81, 216, 144, 729, 2916, 3888, 1728, 6561, 34992, 69984, 62208, 20736, 59049, 393660, 1049760, 1399680, 933120, 248832, 531441, 4251528, 14171760, 25194240, 25194240, 13436928, 2985984, 4782969, 44641044, 178564176 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,2

REFERENCES

B. N. Cyvin et al., Isomer enumeration of unbranched catacondensed polygonal systems with pentagons and heptagons, Match, No. 34 (Oct 1996), pp. 109-121.

LINKS

Table of n, a(n) for n=0..30.

CROSSREFS

Sequence in context: A045769 A140145 A166643 * A246916 A188001 A273614

Adjacent sequences:  A038299 A038300 A038301 * A038303 A038304 A038305

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 23 08:57 EDT 2019. Contains 328345 sequences. (Running on oeis4.)