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!)
A164174 Number of binary strings of length n with equal numbers of 0011 and 0101 substrings 1
1, 2, 4, 8, 14, 24, 41, 68, 113, 192, 333, 596, 1106, 2110, 4108, 8104, 16073, 31894, 63160, 124644, 245071, 480334, 939230, 1833912, 3579000, 6986336, 13648481, 26694632, 52280853, 102529288, 201326717, 395764420, 778710612, 1533356190 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

R. H. Hardin, Table of n, a(n) for n=0..500

Shalosh B. Ekhad and Doron Zeilberger, Automatic Solution of Richard Stanley's Amer. Math. Monthly Problem #11610 and ANY Problem of That Type, arXiv preprint arXiv:1112.6207, 2011. See subpages for rigorous derivations of g.f., recurrence, asymptotics for this sequence. [From N. J. A. Sloane, Apr 07 2012]

CROSSREFS

Sequence in context: A164406 A178982 A164397 * A164396 A164400 A164405

Adjacent sequences:  A164171 A164172 A164173 * A164175 A164176 A164177

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 11 2009

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 July 7 13:44 EDT 2020. Contains 335495 sequences. (Running on oeis4.)