A274297 a(n) = 2*A090495(n) - 1.

1147, 2369, 2479, 2537, 2751, 3811, 3819, 5143, 5377, 5959, 6475, 6767, 7601, 7807, 8241, 9139, 9381, 9577, 10471, 11723, 11803, 12453, 12663, 12803, 12875, 13135, 14467, 15799, 16225, 16867, 17085, 17113, 17131, 18463, 19221, 19339, 19647, 19781, 19795, 21127, 21173, 21507, 22459

Offset: 1

Author

N. J. A. Sloane, Jun 18 2016

Keywords

• nonn

Crossrefs

Cf. A090495.