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A038287
Triangle whose (i,j)-th entry is binomial(i,j)*8^(i-j)*9^j.
0
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
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.
CROSSREFS
Sequence in context: A033045 A025633 A249697 * A229095 A343186 A041140
KEYWORD
nonn,tabl,easy
AUTHOR
STATUS
approved