|
Search: id:A007058
|
|
|
| A007058 |
|
Number of words of length n in a certain language.
(Formerly M3936)
|
|
+0
1
|
|
| 1, 5, 25, 65, 265, 605, 2125, 4345, 14665, 27965, 93025
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
REFERENCES
|
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
R. Kemp, On the number of words in the language {w in Sigma* | w = w^R }^2, Discrete Math., 40 (1982), 225-234.
|
|
CROSSREFS
|
Sequence in context: A146404 A054994 A108403 this_sequence A071383 A088959 A018782
Adjacent sequences: A007055 A007056 A007057 this_sequence A007059 A007060 A007061
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein, R. Kemp
|
|
|
Search completed in 0.002 seconds
|
