id:A038269 - OEIS Search Results

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Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*3^j.

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1, 7, 3, 49, 42, 9, 343, 441, 189, 27, 2401, 4116, 2646, 756, 81, 16807, 36015, 30870, 13230, 2835, 243, 117649, 302526, 324135, 185220, 59535, 10206, 729, 823543, 2470629, 3176523, 2268945, 972405, 250047, 35721, 2187, 5764801 (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: A099398 A153722 A145758 this_sequence A003723 A054471 A086453` `Adjacent sequences: A038266 A038267 A038268 this_sequence A038270 A038271 A038272`
	KEYWORD	`nonn,tabl,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

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