id:A119169 - OEIS Search Results

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A119169

Numbers n such that the n-th triangular number contains only digits {2,5,8}.

+0
3

7, 10, 32, 714, 1025, 1287, 6712, 10849, 13285, 23885, 711129, 22595807, 22619825, 40641912, 715385610, 33343322745, 332431301950, 23785828913825 (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, A119168. See A119034 for a table of cross-references.` `Sequence in context: A058532 A070422 A102574 this_sequence A095756 A126076 A099579` `Adjacent sequences: A119166 A119167 A119168 this_sequence A119170 A119171 A119172`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified December 20 16:13 EST 2009. Contains 171081 sequences.

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