login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A026115
a(n) = T(2n,n-1), where T is the array defined in A026105.
0
1, 3, 15, 77, 413, 2266, 12636, 71290, 405790, 2325923, 13406666, 77632590, 451270925, 2631763500, 15391191315, 90230338449, 530098757210, 3120158068370, 18395925762046, 108621483748778, 642235028537889, 3801900814767378, 22531392119093175, 133663824177577317
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..24.
CROSSREFS
Cf. A026105.
Sequence in context: A037766 A037654 A074561 * A027911 A125700 A227954
Adjacent sequences: A026112 A026113 A026114 * A026116 A026117 A026118
KEYWORD
nonn
AUTHOR
Clark Kimberling
EXTENSIONS
More terms from Sean A. Irvine, Sep 16 2019
STATUS
approved

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified November 29 00:35 EST 2024. Contains 378208 sequences.
License Agreements, Terms of Use, Privacy Policy