

A240815


a(n) = index of first nonexisting term of the metaFibonacci sequence {f(1) = ... = f(n) = 1; f(k)=f(kf(k3))+f(kf(kn))} 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
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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 Qsequence, J. Integer Sequences, Vol. 10 (2007), #07.7.1.
D. R. Hofstadter, Curious patterns and nonpatterns in a family of metaFibonacci recursions, Lecture in Doron Zeilberger's Experimental Mathematics Seminar, Rutgers University, April 10 2014; Part 1, Part 2.
Index entries for Hofstadtertype 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



