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A057495 Number of association schemes of order n. 3
1, 1, 2, 4, 3, 8, 4, 21, 12, 13, 4, 59, 6, 16, 25, 222, 5, 95, 7, 95, 32, 16, 22, 750, 45, 34, 502, 185 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..28.

Akihide Hanaki and Izumi Miyamoto, Classification of primitive association schemes of order up to 22, Kyushu J. Math., 54 (2000), 81-86.

Akihide Hanaki and Izumi Miyamoto, Classification of association schemes of small order, Discrete Math. 264 (2003), 75-80.

A. Hanaki and I. Miyamoto, Classification of association schemes with small vertices

Y. Suga, Association schemes with up to 15 vertices [Broken link]

CROSSREFS

Cf. A057498, A057499, A057560.

Sequence in context: A329486 A051145 A288966 * A321366 A180246 A329146

Adjacent sequences:  A057492 A057493 A057494 * A057496 A057497 A057498

KEYWORD

nonn,nice,more

AUTHOR

N. J. A. Sloane, Oct 01 2000

STATUS

approved

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Last modified April 9 17:48 EDT 2020. Contains 333361 sequences. (Running on oeis4.)