id:A048531 - OEIS Search Results

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a(n)*(a(n)+1) is smallest pronic number containing exactly n 1's.

+0
2

3, 10, 105, 1010, 10203, 33928, 105551, 335128, 1054130, 12313046, 100573943, 333192303 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Eric Weisstein's World of Mathematics, Pronic Number`
	CROSSREFS	`Cf. A048532, A002378.` `Sequence in context: A117664 A091342 A093454 this_sequence A073306 A034945 A132480` `Adjacent sequences: A048528 A048529 A048530 this_sequence A048532 A048533 A048534`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), May 15 1999.`

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