1,3

Table of n, a(n) for n=1..70.

Cf. A006161.

Sequence in context: A293990 A247130 A271974 * A323703 A333147 A323434

Adjacent sequences: A050821 A050822 A050823 * A050825 A050826 A050827

nonn,easy

Mohammad K. Azarian

More terms from Jordan D Culp (s1172070(AT)Cedarville.edu)

approved