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A119082 Numbers k such that the k-th triangular number contains only digits {0,5,7}. 2
10, 100, 124, 375, 1000, 10000, 100000, 1000000, 3924474, 10000000, 100000000, 387492084, 1000000000, 3885885999, 10000000000, 31804089540, 39371996915, 100000000000, 122929061474, 1000000000000, 10000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Cf. A000217, A119081. See A119034 for a table of cross-references.
Sequence in context: A035504 A072366 A349316 * A116143 A208497 A207585
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, May 10 2006
STATUS
approved

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Last modified April 21 07:37 EDT 2024. Contains 371850 sequences. (Running on oeis4.)