1,3

See A095029.

Dan Gordon, List of Cyclic Difference Sets

Cf. A095025 number of cyclic difference sets with n elements, A095029-A095047 more examples of cyclic difference sets with k=5..20, A000961 prime powers.

Sequence in context: A072521 A130178 A100410 this_sequence A161925 A043477 A055040

Adjacent sequences: A095029 A095030 A095031 this_sequence A095033 A095034 A095035

fini,full,nonn

Hugo Pfoertner (hugo(AT)pfoertner.org), May 27 2004