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: A109396 A055598 A035511 this_sequence A108027 A090767 A117227
Adjacent sequences: A095032 A095033 A095034 this_sequence A095036 A095037 A095038
fini,full,nonn
Hugo Pfoertner (hugo(AT)pfoertner.org), May 27 2004
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