282487

Properties

Appears in sequences

• a(n) = n^4 + 5*n^2 + 1.at n=23A082113
• Number of 1's in n-th "Kolakoski" string defined in A054349.at n=31A111124
• a(n) is the least prime p such that the second forward difference of three consecutive primes p, q and r is n = (p - 2q + r)/2.at n=30A316791
• Prime numbersat n=24643