|
| |
|
|
A005410
|
|
From interval orders.
(Formerly M0435)
|
|
0
| |
|
|
1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 9, 10
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| The g.f. -(-1-z+z**3)/(1+z)/(z-1)**2 conjectured by S. Plouffe in his 1992 dissertation is wrong.
|
|
|
REFERENCES
| Fishburn, Peter C.; Maximum semiorders in interval orders. SIAM J. Algebraic Discrete Methods 2 (1981), no. 2, 127-135.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
|
LINKS
| S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.
|
|
|
CROSSREFS
| Sequence in context: A030581 A113609 A067086 * A120835 A091374 A065603
Adjacent sequences: A005407 A005408 A005409 * A005411 A005412 A005413
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
