OFFSET
1,7
LINKS
Gil Broussard, The Embedded Fibonacci Sequence.
EXAMPLE
a(26)=7 because Fib(26)=121393 and 7 Fibonacci numbers appear within 121393: 1 appears twice, 3 appears twice and 2, 13 and 21 each appear once.
MATHEMATICA
Table[Total[Table[SequenceCount[IntegerDigits[Fibonacci[n]], IntegerDigits[ Fibonacci[ i]]], {i, 2, n-1}]], {n, 100}] (* The program uses the SequenceCount function from Mathematica version 10 *) (* Harvey P. Dale, Sep 05 2015 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Gil Broussard, Jan 12 2004
STATUS
approved