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A038311
Triangle whose (i,j)-th entry is binomial(i,j)*10^(i-j)*9^j.
0
1, 10, 9, 100, 180, 81, 1000, 2700, 2430, 729, 10000, 36000, 48600, 29160, 6561, 100000, 450000, 810000, 729000, 328050, 59049, 1000000, 5400000, 12150000, 14580000, 9841500, 3542940, 531441, 10000000, 63000000, 170100000, 255150000
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: A052196 A243035 A070252 * A244960 A282560 A335556
KEYWORD
nonn,tabl,easy
AUTHOR
STATUS
approved