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A181706 Numbers of the form 2^(t-1)*(2^t-17), where 2^t-17 is prime. 1

%I #7 Mar 30 2012 18:52:59

%S 1504,30592,8353792,2146926592,34357510144,549746900992,8796057370624,

%T 140737345748992,9223372000347553792,2361183240850707054592,

%U 9671406556879650002305024,154742504910523000781012992

%N Numbers of the form 2^(t-1)*(2^t-17), where 2^t-17 is prime.

%C All entries are near-perfect numbers (A181595). The proof follows as in A181705, but this time the abundance is 16.

%Y Cf. A059611, A181595, A181701, A000396, A181703, A181704, A181705.

%K nonn

%O 1,1

%A _Vladimir Shevelev_, Nov 06 2010

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Last modified April 18 18:58 EDT 2024. Contains 371781 sequences. (Running on oeis4.)