Least positive integer m > 1 such that 1 - m^k + m^(2k) - m^(3k) + m^(4k) is prime, where k = A003592(n).
A181980
Least positive integer m > 1 such that 1 - m^k + m^(2k) - m^(3k) + m^(4k) is prime, where k = A003592(n).
Terms
- a(0) =2a(1) =4a(2) =2a(3) =6a(4) =2a(5) =20a(6) =20a(7) =26a(8) =25a(9) =10a(10) =14a(11) =5a(12) =373a(13) =4a(14) =65a(15) =232a(16) =56a(17) =2a(18) =521a(19) =911a(20) =1156a(21) =1619a(22) =647a(23) =511a(24) =34a(25) =2336a(26) =2123a(27) =1274a(28) =2866a(29) =951
External references
- oeis: A181980