Values of n such that L(1) and N(1) 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.
A226921
Values of n such that L(1) and N(1) 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) =0a(1) =1a(2) =-3a(3) =3a(4) =-5a(5) =13a(6) =25a(7) =31a(8) =-33a(9) =37a(10) =-39a(11) =55a(12) =-57a(13) =-71a(14) =79a(15) =-87a(16) =-159a(17) =181a(18) =-183a(19) =219a(20) =-221a(21) =-243a(22) =-255a(23) =255a(24) =279a(25) =-281a(26) =289a(27) =-291a(28) =307a(29) =325
External references
- oeis: A226921