Numbers k such that k^2 + 1 is divisible by precisely four distinct primes where the sum of the largest and the smallest is equal to the sum of the other two.
A192770
Numbers k such that k^2 + 1 is divisible by precisely four distinct primes where the sum of the largest and the smallest is equal to the sum of the other two.
Terms
- a(0) =948a(1) =1560a(2) =1772a(3) =13236a(4) =36984a(5) =40452a(6) =94536a(7) =100512a(8) =127224a(9) =425808a(10) =757382a(11) =850416a(12) =875784a(13) =1241106a(14) =2102736a(15) =3343164a(16) =4361808a(17) =4530480a(18) =5401464a(19) =8006700a(20) =8645004a(21) =9806604a(22) =10379136a(23) =10829580a(24) =11366424a(25) =11692746a(26) =13960260
External references
- oeis: A192770