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A119084 Numbers n such that the n-th triangular number contains only digits {0,5,8}. +0
3
10, 100, 1000, 10000, 100000, 1000000, 1056485, 10000000, 40212075, 100000000, 1000000000, 10000000000, 100000000000, 100549051600, 1000000000000, 10000000000000, 100000000000000, 421438146839024, 1000000000000000 (list; graph; listen)
OFFSET

1,1

LINKS

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119083. See A119034 for a table of cross-references.

Sequence in context: A136844 A136842 A136872 this_sequence A136875 A135654 A029800

Adjacent sequences: A119081 A119082 A119083 this_sequence A119085 A119086 A119087

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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