A278067 Relative of Hofstadter Q-sequence: a(1) = 37, a(2) = 2; thereafter a(n) = a(n-a(n-1)) + a(n-a(n-2)).

37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 2, 37, 39, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 2, 76, 39

Offset

1,1

Comments

In calculating terms of this sequence, use the convention that a(n)=0 for n<=0.

This sequence has exactly 3850 terms, since a(3850)=0 and computing a(3851) would refer to itself.

Superficially, this sequence behaves similarly to A278066. But, that sequence is infinite, but this sequence dies.

Links

Nathan Fox, Table of n, a(n) for n = 1..3850

N. Fox, Hofstadter-like Sequences over Nonstandard Integers", Talk given at the Rutgers Experimental Mathematics Seminar, November 10 2016.

Crossrefs

Cf. A005185, A278066, A278068.

Sequence in context: A057639 A190356 A051316 * A178199 A107812 A254324

Adjacent sequences: A278064 A278065 A278066 * A278068 A278069 A278070

Keyword

nonn,fini,full

Author

Nathan Fox, Nov 13 2016

Status

approved