login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A066350 Bisection of A007059. 1
0, 1, 3, 8, 24, 77, 256, 874, 3045, 10780, 38674, 140268, 513350, 1892875, 7023562, 26200182, 98182666, 369393466, 1394632365, 5281753216, 20058841004, 76370762838, 291436246116, 1114474774102, 4270050059100, 16389518073023, 63010289558056, 242614318886286 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..500

MAPLE

b:= proc(n, m) option remember; `if`(n=0, 1,

      `if`(m=0, add(b(n-j, j), j=1..n),

      add(b(n-j, min(n-j, m)), j=1..min(n, m))))

    end:

a:= n-> b(2*n-1, 0):

seq(a(n), n=0..40);  # Alois P. Heinz, Dec 19 2014

MATHEMATICA

b[n_, m_] := b[n, m] = If[n == 0, 1, If[m == 0, Sum[b[n-j, j], {j, 1, n}], Sum[b[n-j, Min[n-j, m]], {j, 1, Min[n, m]}]]];

a[n_] := b[2n-1, 0];

a /@ Range[0, 40] (* Jean-Fran├žois Alcover, Nov 17 2020, after Alois P. Heinz *)

CROSSREFS

Cf. A007059, A066351.

Sequence in context: A148783 A084205 A118099 * A148784 A148785 A148786

Adjacent sequences:  A066347 A066348 A066349 * A066351 A066352 A066353

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Dec 19 2001

EXTENSIONS

More terms from Joshua Zucker, May 12 2006

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 24 17:43 EDT 2021. Contains 348233 sequences. (Running on oeis4.)