id:A119221 - OEIS Search Results

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A119221

Numbers n such that the n-th triangular number contains only digits {5,6,8}.

+0
3

3, 10, 11, 36, 105, 108, 114, 1316, 3363, 105516, 343091, 1316705, 3657011, 10638485, 13310789, 33336636, 37028788, 1145936870, 108320504576528, 3333333366663363 (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, A119220. See A119034 for a table of cross-references.` `Sequence in context: A119223 A119165 A119080 this_sequence A119219 A125569 A020681` `Adjacent sequences: A119218 A119219 A119220 this_sequence A119222 A119223 A119224`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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