A119157 - OEIS

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A119157

Numbers n such that the n-th triangular number contains only digits {2,3,8}.

2, 7, 87, 1287, 881287, 21158087, 25800318712, 7535029241912 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`Next entry must be greater than 4.4*10^18.`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119156. See A119034 for a table of cross-references.` `Sequence in context: A163855 A041291 A054919 * A079701 A096208 A123995` `Adjacent sequences: A119154 A119155 A119156 * A119158 A119159 A119160`
	KEYWORD	`nonn,base,more`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`
	EXTENSIONS	`Lower bound for the next term updated by Max Alekseyev (maxale(AT)gmail.com), May 21 2009`

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Last modified February 15 08:49 EST 2012. Contains 205740 sequences.