A105712 Smallest m such that 2 is at the n-th position of the decimal representation of the m-th Fibonacci number.
2, 21, 233, 2584, 28657, 9227465, 2178309, 24157817, 267914296, 2971215073, 20365011074, 225851433717, 2504730781961, 27777890035288, 19740274219868223167, 2111485077978050, 23416728348467685
Offset: 0
Examples
n=3: A105700(3)=18, a(3)=A000045(18)=2584->[2]584; n=4: A105700(4)=23, a(4)=A000045(23)=28657->[2]8657.
Links
- Eric Weisstein's World of Mathematics, Fibonacci Number
Comments