A234947 Number of different optimal triangle difference sets M(n,2).

1, 3, 12, 8, 21, 720, 4079, 3040, 20505, 1669221, 14708525, 10567748

Offset

1,2

Links

Table of n, a(n) for n=1..12.

J. B. Shearer, Difference Triangle Sets: Known optimal solutions.

J. B. Shearer, Difference Triangle Sets: Discoverers

Crossrefs

A row of array in A234944. Cf. A234943.

Sequence in context: A344112 A337203 A013188 * A051353 A070706 A239932

Adjacent sequences: A234944 A234945 A234946 * A234948 A234949 A234950

Keyword

nonn

Author

N. J. A. Sloane, Jan 08 2014

Status

approved