id:A119207 - OEIS Search Results

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Numbers n such that the n-th triangular number contains only digits {4,5,8}.

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9, 10, 9854, 411933209, 9443035090314, 29851116744790, 30195643554810, 3423114221246070 (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, A119206. See A119034 for a table of cross-references.` `Sequence in context: A042191 A042729 A119205 this_sequence A058069 A098728 A107576` `Adjacent sequences: A119204 A119205 A119206 this_sequence A119208 A119209 A119210`
	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.