Numbers k such that k^2 +/- (k-1) and (k-1)*k^2 +/- 1 are all primes.

Terms

a(0) =2a(1) =3a(2) =6a(3) =13a(4) =21a(5) =100a(6) =120a(7) =195a(8) =393a(9) =541a(10) =1749a(11) =1849a(12) =3640a(13) =3829a(14) =4003a(15) =5488a(16) =5754a(17) =8973a(18) =8989a(19) =9043a(20) =10824a(21) =10828a(22) =13488a(23) =17016a(24) =18493a(25) =19306a(26) =21505a(27) =24270a(28) =27139a(29) =30163