1,2

Peter Kagey, Table of n, a(n) for n = 1..2500

Cf. A006255, A070229.

Complement of A255363.

Sequence in context: A196149 A240163 A331819 * A067023 A227762 A333506

Adjacent sequences: A269042 A269043 A269044 * A269046 A269047 A269048

nonn

Peter Kagey, Feb 22 2016

approved