id:A046199 - OEIS Search Results

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Indices of pentagonal numbers which are also heptagonal.

+0
3

1, 54, 3337, 206830, 12820113, 794640166, 49254870169, 3053007310302, 189237198368545, 11729653291539478, 727049266877079081, 45065324893087363534, 2793323094104539460017, 173140966509588359157510 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Cf. A046198, A048900.` `Sequence in context: A076009 A003755 A042405 this_sequence A007761 A085482 A084226` `Adjacent sequences: A046196 A046197 A046198 this_sequence A046200 A046201 A046202`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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