Values of n such that L(3) and N(3) 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.
A226923
Values of n such that L(3) and N(3) 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) =-3a(1) =7a(2) =19a(3) =25a(4) =-33a(5) =39a(6) =-51a(7) =-65a(8) =79a(9) =105a(10) =117a(11) =177a(12) =-231a(13) =259a(14) =-401a(15) =483a(16) =499a(17) =-513a(18) =529a(19) =-597a(20) =-635a(21) =-705a(22) =723a(23) =-747a(24) =-861a(25) =-863a(26) =-887a(27) =-905a(28) =-933a(29) =-1017
External references
- oeis: A226923