id:A038293 - OEIS Search Results

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Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*3^j.

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1, 9, 3, 81, 54, 9, 729, 729, 243, 27, 6561, 8748, 4374, 972, 81, 59049, 98415, 65610, 21870, 3645, 243, 531441, 1062882, 885735, 393660, 98415, 13122, 729, 4782969, 11160261, 11160261, 6200145, 2066715, 413343, 45927, 2187 (list; table; graph; listen)

	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: A166203 A103935 A040077 this_sequence A119516 A116393 A021918` `Adjacent sequences: A038290 A038291 A038292 this_sequence A038294 A038295 A038296`
	KEYWORD	`nonn,tabl,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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