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A119114 Numbers n such that the n-th triangular number contains only digits {1,3,5}. 2
1, 2, 5, 10, 17, 26, 101, 257, 266, 2657, 2666, 8382, 10114, 10130, 26657, 26666, 55733, 101342, 103453, 176257, 266657, 266666, 553778, 557342, 794142, 843010, 1645085, 2666657, 2666666, 3209770, 4723421, 26666657, 26666666, 84042269 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..34.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119113. See A119034 for a table of cross-references.

Sequence in context: A069987 A248742 A246884 * A062493 A056871 A246883

Adjacent sequences:  A119111 A119112 A119113 * A119115 A119116 A119117

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved

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Last modified June 28 05:07 EDT 2017. Contains 288813 sequences.