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A038295 Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*5^j. 0
1, 9, 5, 81, 90, 25, 729, 1215, 675, 125, 6561, 14580, 12150, 4500, 625, 59049, 164025, 182250, 101250, 28125, 3125, 531441, 1771470, 2460375, 1822500, 759375, 168750, 15625, 4782969, 18600435, 31000725, 28704375, 15946875 (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..32.

CROSSREFS

Sequence in context: A061041 A248308 A035417 * A206771 A317869 A103362

Adjacent sequences:  A038292 A038293 A038294 * A038296 A038297 A038298

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified March 20 09:50 EDT 2019. Contains 321345 sequences. (Running on oeis4.)