A038333 Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*7^j.

1, 12, 7, 144, 168, 49, 1728, 3024, 1764, 343, 20736, 48384, 42336, 16464, 2401, 248832, 725760, 846720, 493920, 144060, 16807, 2985984, 10450944, 15240960, 11854080, 5186160, 1210104, 117649, 35831808, 146313216, 256048128, 248935680

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: A305939 A206423 A319406 * A185259 A090438 A346223

Adjacent sequences: A038330 A038331 A038332 * A038334 A038335 A038336

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved