50428

Appears in sequences

• Numbers k such that k | 12^k + 12.at n=35A015904
• Values of n for which pi_{4,3}(p_n) - pi_{4,1}(p_n) = -1, where p_n is the n-th prime and pi_{m,a}(x) is the number of primes <= x which are congruent to a (mod m).at n=11A051024
• Integers k for which {prime(1), prime(2), ..., prime(k)} (mod 4) is biased towards 1.at n=25A096628
• a(n) = n*(7*n^2 - 3*n - 1)/3.at n=28A214659
• Number of Motzkin paths of length n with all ascents ending at odd heights.at n=15A299271