id:A119175 - OEIS Search Results

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A119175

Numbers n such that the n-th triangular number contains only digits {2,6,8}.

+0
3

3, 7, 11, 36, 72, 676, 1287, 2108, 11512, 21112, 23927, 35447, 37112, 41527, 67323, 35289847, 41633847, 11684368072, 24026103588, 364110500487, 7566093164465563 (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, A119174. See A119034 for a table of cross-references.` `Sequence in context: A131588 A091938 A051919 this_sequence A038913 A141178 A106966` `Adjacent sequences: A119172 A119173 A119174 this_sequence A119176 A119177 A119178`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

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