login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A114512 Number of terms in s(n), where s(n) is defined at sequence A114510. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
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: A310038 A036696 A111039 * A118113 A258165 A076193
KEYWORD
easy,nonn
AUTHOR
Leroy Quet, Dec 03 2005
EXTENSIONS
Extended by Ray Chandler, Dec 05 2005
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)