|
| |
|
|
A057498
|
|
Number of noncommutative association schemes of order n.
|
|
3
|
|
|
|
0, 0, 0, 0, 0, 1, 0, 2, 0, 2, 0, 12, 0, 2, 1, 49, 0, 22, 0, 22, 3, 2, 0, 242, 0, 4, 10, 22
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,8
|
|
|
REFERENCES
|
Akihide Hanaki and Izumi Miyamoto, Classification of primitive association schemes of order up to 22, Kyushu J. Math., 54 (2000), 81-86.
|
|
|
LINKS
|
Table of n, a(n) for n=1..28.
A. Hanaki and I. Miyamoto, Classification of association schemes with small vertices
Y. Suga, Association schemes with up to 15 vertices
|
|
|
CROSSREFS
|
Cf. A057495, A057499, A057560.
Sequence in context: A113400 A089780 A136668 * A137949 A019214 A137668
Adjacent sequences: A057495 A057496 A057497 * A057499 A057500 A057501
|
|
|
KEYWORD
|
nonn,nice
|
|
|
AUTHOR
|
N. J. A. Sloane, Oct 01 2000
|
|
|
STATUS
|
approved
|
| |
|
|
