A050816 Fibonacci(k) ending with digits of its index number k.

0, 1, 5, 75025, 514229, 165580141, 7778742049, 2504730781961, 17167680177565, 259695496911122585, 1779979416004714189, 573147844013817084101, 59425114757512643212875125, 898923707008479989274290850145

Offset

0,3

Links

Table of n, a(n) for n=0..13.

Mathematica

fQ[n_]:=Module[{idni=IntegerDigits[First[n]], indf=IntegerDigits[Last[n]]}, idni== Take[indf, -Length[idni]]]; Transpose[Select[Table[ {n, Fibonacci[n]}, {n, 0, 150}], fQ]][[2]] (* Harvey P. Dale, Apr 21 2011 *)

Crossrefs

Cf. A000045, A000350, A038546, A052000.

Sequence in context: A242833 A242478 A247845 * A171981 A145232 A263174

Adjacent sequences: A050813 A050814 A050815 * A050817 A050818 A050819

Keyword

nonn,base

Author

Patrick De Geest, Oct 15 1999

Status

approved