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

%I

%S 1147,2369,2479,2537,2751,3811,3819,5143,5377,5959,6475,6767,7601,

%T 7807,8241,9139,9381,9577,10471,11723,11803,12453,12663,12803,12875,

%U 13135,14467,15799,16225,16867,17085,17113,17131,18463,19221,19339,19647,19781,19795,21127,21173,21507,22459

%N a(n) = 2*A090495(n) - 1.

%Y Cf. A090495.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Jun 18 2016

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Last modified May 22 20:08 EDT 2022. Contains 353957 sequences. (Running on oeis4.)