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A038301 Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*11^j. 1
1, 9, 11, 81, 198, 121, 729, 2673, 3267, 1331, 6561, 32076, 58806, 47916, 14641, 59049, 360855, 882090, 1078110, 658845, 161051, 531441, 3897234, 11908215, 19405980, 17788815, 8696754, 1771561, 4782969, 40920957, 150043509, 305644185 (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

Harvey P. Dale, Table of n, a(n) for n = 0..1000

MATHEMATICA

Table[Binomial[i, j]9^(i-j) 11^j, {i, 0, 10}, {j, 0, i}]//Flatten (* Harvey P. Dale, May 08 2020 *)

CROSSREFS

Sequence in context: A195941 A195992 A108687 * A277998 A289288 A137016

Adjacent sequences:  A038298 A038299 A038300 * A038302 A038303 A038304

KEYWORD

nonn,tabl,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 22 14:40 EDT 2021. Contains 348170 sequences. (Running on oeis4.)