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A004078
Number of Tuscan squares of order n.
0
1, 0, 1, 0, 736, 466144
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OFFSET
2,5
REFERENCES
CRC Handbook of Combinatorial Designs, 1996, p. 480.
LINKS
Table of n, a(n) for n=2..7.
CROSSREFS
Sequence in context:
A157198
A156954
A231034
*
A295984
A218596
A043633
Adjacent sequences:
A004075
A004076
A004077
*
A004079
A004080
A004081
KEYWORD
nonn
,
hard
AUTHOR
N. J. A. Sloane
STATUS
approved
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Last modified May 4 18:21 EDT 2024. Contains 372257 sequences. (Running on oeis4.)