A038287 - OEIS

A038287

Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*9^j.

1, 8, 9, 64, 144, 81, 512, 1728, 1944, 729, 4096, 18432, 31104, 23328, 6561, 32768, 184320, 414720, 466560, 262440, 59049, 262144, 1769472, 4976640, 7464960, 6298560, 2834352, 531441, 2097152, 16515072, 55738368, 104509440

(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..31.

CROSSREFS

Sequence in context: A033045 A025633 A249697 * A229095 A343186 A041140

Adjacent sequences: A038284 A038285 A038286 * A038288 A038289 A038290

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved