A119080 - OEIS

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A119080

Numbers k such that the k-th triangular number contains only digits {0,5,6}.

2

3, 10, 11, 36, 100, 105, 114, 363, 1000, 1095, 1100, 3363, 10000, 11000, 100000, 110000, 1000000, 1100000, 10000000, 11000000, 11541720, 33166430, 33336636, 100000000, 110000000, 1000000000, 1100000000, 3363197899, 3464103363

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..29.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119079. See A119034 for a table of cross-references.

Sequence in context: A136815 A119223 A119165 * A119221 A119219 A125569

Adjacent sequences: A119077 A119078 A119079 * A119081 A119082 A119083

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved