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A240814 a(n) = index of first nonexisting term of the meta-Fibonacci sequence {f(1) = ... = f(n) = 1; f(k)=f(k-f(k-2))+f(k-f(k-n))} if that sequence is only defined for finitely many terms, or 0 if that sequence is infinite. 2
15, 55, 0, 38, 31, 64, 369, 48, 47, 109, 189, 119, 63, 210 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

COMMENTS

a(4)=0 is only a conjecture.

Except for the zero entry, this is equal to A240811(n)+1. See that entry for further information.

REFERENCES

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.

LINKS

Table of n, a(n) for n=2..15.

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 A240811 for another version.

A diagonal of the triangle in A240816.

Sequence in context: A059145 A086643 A296324 * A225509 A235533 A039369

Adjacent sequences:  A240811 A240812 A240813 * A240815 A240816 A240817

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Apr 15 2014

STATUS

approved

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Last modified June 19 14:01 EDT 2021. Contains 345139 sequences. (Running on oeis4.)