id:A119074 - OEIS Search Results

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Numbers n such that the n-th triangular number contains only digits {0,4,6}.

+0
3

3, 11, 28, 36, 363, 944, 1095, 9596, 29680, 89895, 3634403, 2979955055, 35888885356, 9430232920411 (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, A119073. See A119034 for a table of cross-references.` `Sequence in context: A036571 A003060 A136983 this_sequence A092781 A018743 A077279` `Adjacent sequences: A119071 A119072 A119073 this_sequence A119075 A119076 A119077`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified September 6 09:40 EDT 2008. Contains 143480 sequences.