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A010893
(n,4,1) 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, 0, 0, 0, 0, 2, 0, 0, 10, 0, 0, 0, 0, 0, 0, 0, 0, 224, 0, 0, 206, 0, 0, 0, 0, 0, 0, 0, 0, 18132, 0, 0, 12048
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OFFSET
13,25
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 286.
LINKS
Table of n, a(n) for n=13..64.
CROSSREFS
Sequence in context:
A258759
A350793
A181499
*
A181501
A213704
A278099
Adjacent sequences:
A010890
A010891
A010892
*
A010894
A010895
A010896
KEYWORD
nonn
,
hard
AUTHOR
N. J. A. Sloane
.
STATUS
approved
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Last modified September 8 08:17 EDT 2024. Contains 375751 sequences. (Running on oeis4.)