1,3

For a guide to related sequences, see A205558.

Table of n, a(n) for n=1..80.

(See the example at A205691.)

(See the program at A205691.)

Cf. A205691, A205558.

Sequence in context: A231568 A227687 A128118 * A029635 A203301 A107456

Adjacent sequences: A205693 A205694 A205695 * A205697 A205698 A205699

nonn

Clark Kimberling, Jan 31 2012

approved