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A011996 (n,3,6) difference families over Z_n. 0
1, 0, 7, 12, 24, 0, 209, 3561, 5285, 0, 375372, 2460490 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,3
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 285.
LINKS
Table of n, a(n) for n=5..16.
CROSSREFS
Sequence in context: A097925 A132195 A076852 * A357509 A190554 A273244
Adjacent sequences: A011993 A011994 A011995 * A011997 A011998 A011999
KEYWORD
nonn,hard
AUTHOR
N. J. A. Sloane.
STATUS
approved

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Last modified May 15 04:57 EDT 2024. Contains 372536 sequences. (Running on oeis4.)