185653

Appears in sequences

• Numbers k such that k | 13^k + 13.at n=14A015905
• Smallest odd k>n such that k | n^k + n, or 0 if n=2^m.at n=13A015908
• a(n) = (n/2)*(n^4 + 1).at n=13A021003
• Terms of A072390 (sums of two powers of 13) divided by 2.at n=16A073220
• Sum_{ i in 1..p-1, j in 1..p-1, i*j mod p = 1} i*j, where p = n-th prime.at n=23A272650