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A038326 Triangle whose (i,j)-th entry is binomial(i,j)*11^(i-j)*12^j. 0
1, 11, 12, 121, 264, 144, 1331, 4356, 4752, 1728, 14641, 63888, 104544, 76032, 20736, 161051, 878460, 1916640, 2090880, 1140480, 248832, 1771561, 11595672, 31624560, 45999360, 37635840, 16422912, 2985984, 19487171, 148811124 (list; table; graph; refs; listen; history; 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.

CROSSREFS

Sequence in context: A033047 A094624 A108218 * A041059 A041260 A109665

Adjacent sequences:  A038323 A038324 A038325 * A038327 A038328 A038329

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 11:57 EST 2012. Contains 205782 sequences.