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A105715
Smallest m such that 5 is at the n-th position of the decimal representation of the m-th Fibonacci number.
10
5, 55, 1597, 75025, 24157817, 514229, 5702887, 32951280099, 12586269025, 225851433717, 53316291173, 591286729879, 61305790721611591, 135301852344706746049, 5527939700884757, 5527939700884757
OFFSET
0,1
COMMENTS
a(n) = A000045(A105705(n)).
LINKS
Eric Weisstein's World of Mathematics, Fibonacci Number
EXAMPLE
n=3: A105700(3)=25, a(3)=A000045(25)=75025->7[5]025;
n=4: A105700(4)=37, a(4)=A000045(37)=24157817->241[5]7817.
KEYWORD
nonn,base
AUTHOR
Reinhard Zumkeller, Apr 18 2005
STATUS
approved