The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A294849 a(n) is the total number of horizontal line segments that belong to the Dyck paths in the diagram of the symmetries of sigma described in A236104 and A237593 after n-th stage, with a(0) = 0. 2
 0, 1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 23, 24, 27, 31, 36, 37, 42, 43, 48, 52, 55, 56, 62, 65, 68, 72, 79, 80 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Since the diagram is symmetrics a(n) is also the number of vertical line segments after n-th stage. For a diagram see A293750. LINKS Table of n, a(n) for n=0..29. FORMULA a(n) = A293750(n)/2. CROSSREFS Cf. A000203, A196020, A235791, A236104, A237048, A237591, A237593, A245092, A293750, A294847, A294848. Sequence in context: A029455 A234718 A341158 * A320226 A290564 A167803 Adjacent sequences: A294846 A294847 A294848 * A294850 A294851 A294852 KEYWORD nonn,more AUTHOR Omar E. Pol, Nov 09 2017 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 May 24 12:49 EDT 2024. Contains 372773 sequences. (Running on oeis4.)