Values of n such that L(18) and N(18) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.

A227521

Values of n such that L(18) and N(18) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.

Terms

    a(0) =-101a(1) =625a(2) =-665a(3) =-1151a(4) =-1211a(5) =1411a(6) =2209a(7) =-2945a(8) =3469a(9) =-4391a(10) =4681a(11) =-4895a(12) =-5945a(13) =-6281a(14) =-6305a(15) =6529a(16) =8125a(17) =-8249a(18) =8269a(19) =-8321a(20) =8605a(21) =9025a(22) =-9821a(23) =-10439a(24) =11659a(25) =13729a(26) =-14429a(27) =14821a(28) =14875a(29) =15031

External references