id:A119229 - OEIS Search Results

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Numbers n such that the n-th triangular number contains only digits {5,8,9}.

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10, 34, 109, 1054, 13114114, 105440870, 1340887434, 33454026929, 44472235965, 13106479203810, 3345411351684270 (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, A119228. See A119034 for a table of cross-references.` `Sequence in context: A019257 A020877 A119171 this_sequence A119227 A068078 A067806` `Adjacent sequences: A119226 A119227 A119228 this_sequence A119230 A119231 A119232`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.