A038278 Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*12^j.

1, 7, 12, 49, 168, 144, 343, 1764, 3024, 1728, 2401, 16464, 42336, 48384, 20736, 16807, 144060, 493920, 846720, 725760, 248832, 117649, 1210104, 5186160, 11854080, 15240960, 10450944, 2985984, 823543, 9882516, 50824368, 145212480

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..31.

Crossrefs

Sequence in context: A194264 A192779 A108238 * A266056 A083335 A372734

Adjacent sequences: A038275 A038276 A038277 * A038279 A038280 A038281

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved