287369842623domain: NAppears in sequencesSmallest k such that k^2+1 is divisible by A002144(n)^8.at n=5A145872a(n) is smallest number such that a(n)^2 + 1 is divisible by 41^n.at n=8A218714Smallest b > 1 such that b^(p-1) == 1 (mod p^8) for p = prime(n).at n=12A353941