A031117 Position of n-th 5 in A031111.

4, 24, 41, 43, 44, 58, 67, 88, 92, 99, 101, 112, 122, 131, 148, 149, 152, 158, 164, 175, 180, 184, 188, 189, 207, 211, 213, 217, 236, 252, 277, 282, 287, 289, 304, 307, 313, 314, 318, 321, 328, 338, 340, 350, 360, 374, 397, 404

Offset

1,1

Links

Table of n, a(n) for n=1..48.

Mathematica

Flatten[Position[Flatten[IntegerDigits[#, 9]&/@Fibonacci[Range[100]]], 5]]-1 (* Harvey P. Dale, Jan 13 2024 *)

Crossrefs

Sequence in context: A048188 A121024 A120622 * A174178 A139245 A224242

Adjacent sequences: A031114 A031115 A031116 * A031118 A031119 A031120

Keyword

nonn

Author

Clark Kimberling

Status

approved