1,4

This sequence is A067734 without the zeros.

David A. Corneth, Table of n, a(n) for n = 1..10000

Cf. A002473, A007602, A067734.

Sequence in context: A231719 A123400 A232502 * A214651 A196059 A272900

Adjacent sequences: A288735 A288736 A288737 * A288739 A288740 A288741

nonn,base

David A. Corneth, Jun 22 2017

approved