|
Search: id:A001885
|
|
|
| A001885 |
|
Hit polynomials.
(Formerly M0384 N0144)
|
|
+0
2
|
|
| 2, 2, 10, 28, 207, 1288, 10366, 91296, 903037, 9832848, 117032570, 1510932116, 21028774738, 313832463386, 4999133311044, 84655108256252, 1518546437350265, 28763765236019284, 573689119174695326
(list; graph; listen)
|
|
|
OFFSET
|
2,1
|
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
J. Riordan, The enumeration of permutations with three-ply staircase restrictions, unpublished memorandum, Bell Telephone Laboratories, Murray Hill, NJ, Oct 1963.
|
|
CROSSREFS
|
Third column of A080018.
Sequence in context: A151428 A102345 A151364 this_sequence A078433 A059494 A052647
Adjacent sequences: A001882 A001883 A001884 this_sequence A001886 A001887 A001888
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com).
|
|
EXTENSIONS
|
More terms from Vladeta Jovovic and Vladimir Baltic (vladeta(AT)eunet.rs), Jan 20 2003
|
|
|
Search completed in 0.002 seconds
|
