1,3

A generalization of A004001.

Table of n, a(n) for n=1..74.

J. Grytczuk, Another variation on Conway's recursive sequence, Discr. Math. 282 (2004), 149-161.

For n>1, a(A000930(n)) = A000930(n-1); conjecture : limit n ->infty a(n)/n = 0.682327803828... the real positive root of x^3+x=1.

(PARI) v=vector(150, j, 1); for(n=3, 150, g=v[v[v[v[n-1]]]]+v[n-v[v[v[n-1]]]]; v[n]=g); a(n)=v[n]

Cf. A004001, A093878, A095770, A095771.

Sequence in context: A094500 A049473 A154951 * A080820 A274687 A234604

Adjacent sequences: A095766 A095767 A095768 * A095770 A095771 A095772

nonn

Benoit Cloitre, Jun 05 2004

approved