A038212 - OEIS

A038212

Triangle whose (i,j)-th entry is binomial(i,j)*2^(i-j)*6^j.

1, 2, 6, 4, 24, 36, 8, 72, 216, 216, 16, 192, 864, 1728, 1296, 32, 480, 2880, 8640, 12960, 7776, 64, 1152, 8640, 34560, 77760, 93312, 46656, 128, 2688, 24192, 120960, 362880, 653184, 653184, 279936, 256, 6144, 64512, 387072, 1451520

(list; table; graph; refs; listen; history; text; internal format)

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..40.

CROSSREFS

Sequence in context: A366652 A106831 A347188 * A092399 A039656 A263326

Adjacent sequences: A038209 A038210 A038211 * A038213 A038214 A038215

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved