A038226 Triangle read by rows: (i,j)-th entry is binomial(i,j)*3^(i-j)*8^j.

1, 3, 8, 9, 48, 64, 27, 216, 576, 512, 81, 864, 3456, 6144, 4096, 243, 3240, 17280, 46080, 61440, 32768, 729, 11664, 77760, 276480, 552960, 589824, 262144, 2187, 40824, 326592, 1451520, 3870720, 6193152, 5505024, 2097152, 6561

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..36.

Crossrefs

Sequence in context: A093439 A000927 A055513 * A095866 A067569 A127518

Adjacent sequences: A038223 A038224 A038225 * A038227 A038228 A038229

Keyword

nonn,tabl,easy

Author

N. J. A. Sloane.

Status

approved