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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A189575 Partial sums of A189476. 2
 0, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 5, 6, 6, 6, 6, 7, 7, 8, 8, 9, 10, 10, 10, 10, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 16, 17, 17, 17, 17, 18, 19, 19, 19, 19, 20, 21, 21, 21, 22, 22, 22, 22, 23, 23, 24, 24, 25, 26, 26, 26, 27, 27, 27, 27, 28, 28, 29, 30, 30, 30, 30, 31, 31, 32, 32, 33, 34, 34 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 LINKS Table of n, a(n) for n=1..81. MATHEMATICA t = Nest[Flatten[# /. {0->{0, 1}, 1->{1, 0, 0}}] &, {0}, 6] (*A189476*) f[n_] := t[[n]] s[n_] := Sum[f[i], {i, 1, n}]; s[0] = 0; Table[s[n], {n, 1, 120}] (*A189575*) Accumulate[Nest[Flatten[#/.{0->{0, 1}, 1->{1, 0, 0}}]&, {0}, 6]] (* Harvey P. Dale, Nov 11 2013 *) CROSSREFS Cf. A189476, A189477, A189478. Sequence in context: A276797 A166872 A283480 * A216503 A216672 A104055 Adjacent sequences: A189572 A189573 A189574 * A189576 A189577 A189578 KEYWORD nonn AUTHOR Clark Kimberling, Apr 23 2011 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.

Last modified October 4 09:13 EDT 2023. Contains 365873 sequences. (Running on oeis4.)