Integers n such that both 2*n^2 + 3*(n+2)^2 and 3*n^2 + 2*(n+2)^2 are prime.
A216849
Integers n such that both 2*n^2 + 3*(n+2)^2 and 3*n^2 + 2*(n+2)^2 are prime.
Terms
- a(0) =5a(1) =257a(2) =881a(3) =1013a(4) =1055a(5) =1133a(6) =1211a(7) =1475a(8) =1517a(9) =1715a(10) =1721a(11) =2771a(12) =2903a(13) =2981a(14) =3491a(15) =3821a(16) =4577a(17) =4661a(18) =4751a(19) =4907a(20) =5171a(21) =5795a(22) =6293a(23) =6347a(24) =6473a(25) =6557a(26) =6677a(27) =7481a(28) =7775a(29) =8393
External references
- oeis: A216849