A006219 From descending subsequences of permutations.

3, 8, 25, 89, 357, 1602, 7959, 43127, 250591, 1537051, 9827077

Offset: 3

Author

N. J. A. Sloane

Keywords

• nonn
• more

References

• N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

• S. Pilpel, Descending subsequences of random permutations, J. Combin. Theory, A 53 (1990), 96-116.

Crossrefs

Column 3 of A224652.

Extensions

a(11)-a(13) from Sean A. Irvine, Feb 03 2017