id:A119038 - OEIS Search Results

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A119038

Numbers n such that the n-th triangular number contains only digits {0,1,4}.

+0
3

1, 4, 141, 144, 286, 9055, 16795, 44944, 90598, 167579, 15100424, 29678424, 45637726, 283245880, 5291767266, 1442505046119, 45042455839799, 151069595909375 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Next entry must be greater than 1.4*10^16.`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119037. See A119034 for a table of cross-references.` `Adjacent sequences: A119035 A119036 A119037 this_sequence A119039 A119040 A119041` `Sequence in context: A093981 A055304 A002917 this_sequence A048432 A122422 A083688`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

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