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A010894
(n,5,1) difference families over Z_n.
0
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 2
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OFFSET
21,41
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 286.
LINKS
Table of n, a(n) for n=21..65.
CROSSREFS
Sequence in context:
A306758
A340983
A247118
*
A002045
A063699
A287464
Adjacent sequences:
A010891
A010892
A010893
*
A010895
A010896
A010897
KEYWORD
nonn
,
hard
AUTHOR
N. J. A. Sloane
STATUS
approved