id:A119178 - OEIS Search Results

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A119178

Triangular numbers composed of digits {2,7,8}.

+0
3

28, 78, 2278, 8778, 222778, 828828, 887778, 8272278, 22227778, 88278828, 88877778, 2222277778, 2882872278, 8882778828, 8888777778, 222222777778, 888827778828, 888887777778, 22222227777778, 88888277778828 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A119179. See A119033 for a table of cross-references.` `Sequence in context: A116314 A044166 A044547 this_sequence A039415 A043238 A044018` `Adjacent sequences: A119175 A119176 A119177 this_sequence A119179 A119180 A119181`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research