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A011993 (2n+1,3,3) difference families over Z_{2n+1}. 0
1, 3, 4, 8, 47, 421, 1550, 13316, 212968 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,2
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 285.
LINKS
CROSSREFS
Sequence in context: A258372 A096847 A367131 * A286125 A180169 A154714
KEYWORD
nonn,hard
AUTHOR
STATUS
approved

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Last modified March 19 02:55 EDT 2024. Contains 370952 sequences. (Running on oeis4.)