A038326 Triangle whose (i,j)-th entry is binomial(i,j)*11^(i-j)*12^j.

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

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..29.

Crossrefs

Sequence in context: A033047 A094624 A108218 * A249312 A357273 A041059

Adjacent sequences: A038323 A038324 A038325 * A038327 A038328 A038329

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved