id:A038230 - OEIS Search Results

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Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*12^j.

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1, 3, 12, 9, 72, 144, 27, 324, 1296, 1728, 81, 1296, 7776, 20736, 20736, 243, 4860, 38880, 155520, 311040, 248832, 729, 17496, 174960, 933120, 2799360, 4478976, 2985984, 2187, 61236, 734832, 4898880, 19595520, 47029248, 62705664 (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: A060035 A165988 A018876 this_sequence A110345 A018999 A085272` `Adjacent sequences: A038227 A038228 A038229 this_sequence A038231 A038232 A038233`
	KEYWORD	`nonn,tabl,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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