Numbers k such that Sum_{j=1..k-1} j*2^(j-1) is prime.

Terms

a(0) =3a(1) =4a(2) =8a(3) =28a(4) =52a(5) =56a(6) =82a(7) =1472a(8) =1484a(9) =8669a(10) =10886a(11) =20804a(12) =32606a(13) =36392a(14) =57005a(15) =61628a(16) =88652a(17) =89732