[go: up one dir, main page]
login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A006219
From descending subsequences of permutations.
(Formerly M2752)
1
3, 8, 25, 89, 357, 1602, 7959, 43127, 250591, 1537051, 9827077
(list; graph; refs; listen; history; text; internal format)
OFFSET
3,1
REFERENCES
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
Table of n, a(n) for n=3..13.
S. Pilpel, Descending subsequences of random permutations, J. Combin. Theory, A 53 (1990), 96-116.
CROSSREFS
Column 3 of A224652.
Sequence in context: A185043 A033483 A130522 * A353406 A009268 A024430
Adjacent sequences: A006216 A006217 A006218 * A006220 A006221 A006222
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane.
EXTENSIONS
a(11)-a(13) from Sean A. Irvine, Feb 03 2017
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 7 14:19 EST 2024. Contains 377535 sequences.
License Agreements, Terms of Use, Privacy Policy