A182588 Numbers which are not prime powers but which satisfy Ko and Ray-Chaudhuri's conditions A1 and A2.

33, 158, 428, 437, 513, 611, 843, 1016, 1184, 1328, 1405, 1472, 2252, 2427, 2669, 2763, 3272, 4304, 4568

Offset

1,1

Comments

Arises in search for {0,1}-difference sets.

Links

Table of n, a(n) for n=1..19.

Hai Ping Ko, and Dijen K. Ray-Chaudhuri, Multiplier theorems, J. Combin. Theory Ser. A 30 (1981), no. 2, 134--157. MR0611247 (84k:05019).

Crossrefs

Sequence in context: A007260 A005904 A207078 * A199900 A086504 A233064

Adjacent sequences: A182585 A182586 A182587 * A182589 A182590 A182591

Keyword

nonn,more

Author

N. J. A. Sloane, May 06 2012

Status

approved