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A090043
Numbers n such that there exists a block-transitive point-imprimitive 3-design with parameters (k(k-1)/2+1, k, lambda) for some lambda.
0
27, 29, 39, 83, 139, 167, 263, 370, 510, 615, 1091, 1399, 1819, 1931, 2039, 2491, 2702, 3419, 3723, 4232, 4883, 6299, 7799
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
REFERENCES
N. D. Tuan, A note on block-transitive point-imprimitive designs, Europ. J. Combin., 24 (2003), 113-119.
LINKS
Table of n, a(n) for n=1..23.
CROSSREFS
Sequence in context: A042510 A157251 A214832 * A030491 A023742 A039562
Adjacent sequences: A090040 A090041 A090042 * A090044 A090045 A090046
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 19 2004
STATUS
approved

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Last modified September 30 02:42 EDT 2024. Contains 376325 sequences.
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