1,3

Another version of A136279 (appropriate since each 2-cycle has two members).

Adjacent sequences: A136277 A136278 A136279 this_sequence A136281 A136282 A136283

Sequence in context: A119060 A119050 A119068 this_sequence A123831 A138648 A145889

nonn

D. E. Knuth, Mar 26 2008