A114512 - OEIS

A114512

Number of terms in s(n), where s(n) is defined at sequence A114510.

1, 3, 5, 9, 11, 17, 19, 21, 25, 35, 37, 49, 51, 53, 57, 59, 65, 83, 85, 105, 107, 129, 131, 133, 137, 163, 165, 167, 171, 173, 179, 181, 183, 187, 197, 233, 235, 273, 275, 277, 281, 283, 289, 291, 293, 297, 307, 309, 321, 371, 373, 425, 427, 481, 483, 485, 489

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..56.

EXAMPLE

s(3), as defined at A114510, is {0,0,1,0,2,0,0,1,3}; so a(3) = 9.

MATHEMATICA

s[0] = {0}; s[n_] := s[n] = Flatten[{s[n - 1], s[s[n - 1][[n]]], {n}}]; Table[Length[s[n]], {n, 0, 56}] (* Ray Chandler, Dec 05 2005 *)

CROSSREFS

Cf. A114510.

Sequence in context: A372051 A036696 A111039 * A118113 A258165 A076193