1,2
Cf. A139704, A050683.
Sequence in context: A206072 A207043 A206065 * A044251 A043454 A044632
Adjacent sequences: A139702 A139703 A139704 * A139706 A139707 A139708
nonn,base
Jono Henshaw (jjono(AT)hotmail.com), Apr 30 2008