6826318

Appears in sequences

• Successive approximations to 13-adic integer sqrt(-1).at n=6A034944
• Smallest k such that k^2+1 is divisible by A002144(n)^7.at n=1A145871
• Smallest k such that k^2+1 is divisible by A002144(n)^8.at n=1A145872
• a(n) is smallest number such that a(n)^2 + 1 is divisible by 13^n.at n=7A218709
• a(n) is smallest number such that a(n)^2 + 1 is divisible by 13^n.at n=8A218709
• One of the two successive approximations up to 13^n for 13-adic integer sqrt(-1). Here the 5 (mod 13) case (except for n=0).at n=7A286840
• One of the two successive approximations up to 13^n for 13-adic integer sqrt(-1). Here the 5 (mod 13) case (except for n=0).at n=8A286840
• Integers b for which there exists an integer y < b such that b^2+1 divides y^4.at n=5A289390
• Smallest b > 1 such that b^(p-1) == 1 (mod p^7) for p = prime(n).at n=5A353940
• Smallest b > 1 such that b^(p-1) == 1 (mod p^8) for p = prime(n).at n=5A353941