A038229 Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*11^j.

1, 3, 11, 9, 66, 121, 27, 297, 1089, 1331, 81, 1188, 6534, 15972, 14641, 243, 4455, 32670, 119790, 219615, 161051, 729, 16038, 147015, 718740, 1976535, 2898918, 1771561, 2187, 56133, 617463, 3773385, 13835745, 30438639, 37202781

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..34.

Crossrefs

Sequence in context: A070613 A316884 A084409 * A257538 A304052 A303122

Adjacent sequences: A038226 A038227 A038228 * A038230 A038231 A038232

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved