id:A119171 - OEIS Search Results

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Numbers n such that the n-th triangular number contains only digits {2,5,9}.

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10, 34, 109, 714, 765, 774, 227825, 14092049, 334531090, 33345441365, 1360847497350, 102951958915365 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Next entry must be greater than 1.4*10^16.`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119170. See A119034 for a table of cross-references.` `Sequence in context: A009924 A019257 A020877 this_sequence A119229 A119227 A166066` `Adjacent sequences: A119168 A119169 A119170 this_sequence A119172 A119173 A119174`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.