A271927 Records in A268868.

1, 2, 4, 6, 9, 23, 25, 71, 73, 263, 265, 911, 913, 5021, 5023, 23291, 23293, 41359, 152681, 152683, 285985, 857951, 857953, 1517571, 1873772, 2498606, 11032457, 11032459, 16576383, 50600183, 50600185, 58908616, 235819403, 235819405, 707458211, 707458213, 1160837269, 3482511803, 3482511805

Offset: 1

Author

N. J. A. Sloane, May 04 2016

Keywords

• nonn

Links

• R. J. Mathar, Table of n, a(n) for n = 1..144

Crossrefs

Cf. A268868, A271928.

Formula

a(n) = A268868(A271928(n)). - R. J. Mathar, May 06 2016