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A240815 a(n) = index of first nonexisting term of the meta-Fibonacci sequence {f(1) = ... = f(n) = 1; f(k)=f(k-f(k-3))+f(k-f(k-n))} if that sequence is only defined for finitely many terms, or 0 if that sequence is infinite. 2
14, 11, 12, 14, 45, 32, 50, 39, 81, 59, 70, 62, 58 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,1

COMMENTS

This is equal to A240812(n)+1. See that entry for further information.

LINKS

Table of n, a(n) for n=3..15.

B. Balamohan, A. Kuznetsov and S. Tanny, On the behavior of a variant of Hofstadter's Q-sequence, J. Integer Sequences, Vol. 10 (2007), #07.7.1.

D. R. Hofstadter, Curious patterns and non-patterns in a family of meta-Fibonacci recursions, Lecture in Doron Zeilberger's Experimental Mathematics Seminar, Rutgers University, April 10 2014; Part 1, Part 2.

Index entries for Hofstadter-type sequences

CROSSREFS

See A240812 for another version.

A diagonal of the triangle in A240816.

Sequence in context: A140739 A305946 A259531 * A305938 A206605 A004503

Adjacent sequences:  A240812 A240813 A240814 * A240816 A240817 A240818

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Apr 15 2014

STATUS

approved

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Last modified July 29 22:32 EDT 2021. Contains 346346 sequences. (Running on oeis4.)