id:A119225 - OEIS Search Results

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A119225

Numbers n such that the n-th triangular number contains only digits {5,7,8}.

+0
3

10, 12, 107, 125, 132, 389, 1332, 3892, 10572, 10749, 13250, 13332, 105714, 133332, 1255050, 1333332, 4208987, 13333332, 107497707, 133333332, 1054396107, 1333333332, 10843226972, 13333333332, 133333333332 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119224. See A119034 for a table of cross-references.` `Adjacent sequences: A119222 A119223 A119224 this_sequence A119226 A119227 A119228` `Sequence in context: A132313 A116118 A038314 this_sequence A078217 A087392 A092887`
	KEYWORD	`nonn,base`
	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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