id:A119146 - OEIS Search Results

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A119146

Triangular numbers composed of digits {1,7,8}.

+0
3

1, 78, 171, 1711, 8778, 11781, 887778, 1188111, 18111171, 71778171, 88877778, 811178781, 7781717881, 8888777778, 181877771881, 887788118778, 888887777778, 88877878118778, 88888877777778, 181887881178871 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`G. Resta, Tridigital Triangular Numbers`
	CROSSREFS	`Cf. A000217, A053913, A119147. See A119033 for a table of cross-references.` `Sequence in context: A044329 A044710 A046428 this_sequence A044410 A044791 A068130` `Adjacent sequences: A119143 A119144 A119145 this_sequence A119147 A119148 A119149`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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