id:A119040 - OEIS Search Results

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A119040

Numbers n such that the n-th triangular number contains only digits {0,1,5}.

+0
3

1, 4, 5, 10, 14, 100, 101, 141, 173, 458, 1000, 1001, 1005, 1010, 4475, 10000, 10001, 10005, 10010, 10100, 10110, 10114, 14869, 45858, 54873, 100000, 100001, 100005, 100010, 100100, 100101, 101000, 101005, 1000000, 1000001, 1000005, 1000010 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119039. See A119034 for a table of cross-references.` `Sequence in context: A073119 A002257 A101528 this_sequence A135104 A131780 A102006` `Adjacent sequences: A119037 A119038 A119039 this_sequence A119041 A119042 A119043`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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