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 A105515 Number of times 5 is the leading digit of the first n+1 Fibonacci numbers in decimal representation. 9
 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,11 COMMENTS a(n) = #{k: A008963(k) = 5 and 0<=k<=n}; a(A105505(n)) = a(A105505(n) - 1) + 1; n = A105511(n) + A105512(n) + A105513(n) + A105514(n) + a(n) + A105516(n) + A105517(n) + A105518(n) + A105519(n). LINKS MATHEMATICA Accumulate[If[First[IntegerDigits[#]]==5, 1, 0]&/@Fibonacci[Range[0, 110]]] (* Harvey P. Dale, Nov 02 2014 *) CROSSREFS Cf. A000030, A000045. Sequence in context: A105516 A105518 A111896 * A105514 A214081 A194338 Adjacent sequences:  A105512 A105513 A105514 * A105516 A105517 A105518 KEYWORD nonn,base AUTHOR Reinhard Zumkeller, Apr 11 2005 STATUS approved

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Last modified May 16 11:54 EDT 2021. Contains 343942 sequences. (Running on oeis4.)