id:A038239 - OEIS Search Results

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Triangle whose (i,j)-th entry is binomial(i,j)*4^(i-j)*9^j.

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1, 4, 9, 16, 72, 81, 64, 432, 972, 729, 256, 2304, 7776, 11664, 6561, 1024, 11520, 51840, 116640, 131220, 59049, 4096, 55296, 311040, 933120, 1574640, 1417176, 531441, 16384, 258048, 1741824, 6531840, 14696640, 19840464, 14880348 (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: A161493 A030075 A038784 this_sequence A089149 A082920 A110979` `Adjacent sequences: A038236 A038237 A038238 this_sequence A038240 A038241 A038242`
	KEYWORD	`nonn,tabl,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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