82681

Appears in sequences

• Numbers k such that k^6 == 1 (mod 7^5).at n=27A056103
• a(n) = 25 + floor( Sum_{j=1..n-1} a(j)/2 ).at n=20A120148
• Number of (w,x,y,z) with all terms in {1,...,n} and w<x*y*z.at n=17A212057
• Table T(k, n) of smallest bases b > 1 such that p = prime(n) satisfies b^(p-1) == 1 (mod p^k), read by antidiagonals.at n=41A257833
• Smallest b > 1 such that p = prime(n) satisfies b^(p-1) == 1 (mod p^p).at n=3A281747
• Smallest b > 1 such that b^(p-1) == 1 (mod p^7) for p = prime(n).at n=3A353940
• a(n) is the least k such that k^2 + k + 1 is divisible by the n-th power of a prime.at n=6A372457
• Smallest integer with a constant congruence speed of (exactly) n in the radix-n numeral system.at n=5A390597