Least positive integer k such that both k and k*n belong to the set {m>0: m+1, m^2+1 and m^2+prime(m)^2 are all prime}.
A261339
Least positive integer k such that both k and k*n belong to the set {m>0: m+1, m^2+1 and m^2+prime(m)^2 are all prime}.
Terms
- a(0) =1a(1) =1a(2) =47500a(3) =20440a(4) =2a(5) =124560a(6) =17850a(7) =2730a(8) =185550a(9) =1a(10) =518910a(11) =429180a(12) =10a(13) =687480a(14) =81030a(15) =36a(16) =1568340a(17) =2a(18) =1165750a(19) =7410a(20) =10a(21) =6780a(22) =481140a(23) =10a(24) =10a(25) =5430a(26) =240a(27) =2730a(28) =72660a(29) =2080
External references
- oeis: A261339