28322

Appears in sequences

• The sequence M(n) in A022905.at n=35A022908
• Numbers k such that k^12 == 1 (mod 13^4).at n=10A056095
• Numbers k such that (2*k)!/(2*(k!)^2)+1 is prime.at n=49A112863
• Numbers n such that n^2 is divisible by the sum of the distinct prime divisors of n^2 + 1.at n=15A196219
• One of the two successive approximations up to 13^n for 13-adic integer sqrt(-1). Here the 8 (mod 13) case (except for n=0).at n=4A286841
• Number of Dyck paths of semilength n such that the minimal number of peaks over all positive levels equals five.at n=13A288544
• a(n) is the smallest positive integer k such that 3^n - 2 divides 3^(n + k) + 2, or 0 if there is no such k.at n=12A298940