A068574 Numbers k such that, treated as a string, k is a substring of Fibonacci(k).

1, 5, 25, 29, 41, 42, 43, 48, 49, 53, 61, 65, 69, 70, 85, 89, 97, 99, 101, 125, 139, 145, 149, 167, 189, 194, 213, 227, 231, 245, 265, 269, 273, 339, 340, 348, 365, 368, 369, 385, 423, 458, 464, 485, 487, 489, 492, 500

Offset

1,2

Links

Paolo P. Lava, Table of n, a(n) for n = 1..382

Example

Treated as strings, 69 is a substring of 117669030460994 = Fibonacci(69), so 69 belongs to the sequence.

Mathematica

Select[Range[500], StringPosition[ToString[Fibonacci[ # ]], ToString[ # ]] != {} &]

Crossrefs

Sequence in context: A137110 A036137 A070380 * A000350 A000221 A018612

Adjacent sequences: A068571 A068572 A068573 * A068575 A068576 A068577

Keyword

base,nonn

Author

Joseph L. Pe, Mar 26 2002

Status

approved