A038334 Triangle whose (i,j)-th entry is binomial(i,j)*12^(i-j)*8^j.

1, 12, 8, 144, 192, 64, 1728, 3456, 2304, 512, 20736, 55296, 55296, 24576, 4096, 248832, 829440, 1105920, 737280, 245760, 32768, 2985984, 11943936, 19906560, 17694720, 8847360, 2359296, 262144, 35831808, 167215104, 334430208, 371589120

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.

Mathematica

Table[Binomial[n, k]12^(n-k) 8^k, {n, 0, 10}, {k, 0, n}]//Flatten (* Harvey P. Dale, May 25 2020 *)

Crossrefs

Sequence in context: A168386 A338825 A338809 * A101501 A299515 A326927

Adjacent sequences: A038331 A038332 A038333 * A038335 A038336 A038337

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved