161473

Appears in sequences

• Number of factorization patterns of polynomials of degree n over F_3.at n=30A006168
• Numbers n such that (j^k + k^j) == 0 (mod k+j), j=4 case.at n=29A114979
• a(n) = Sum_{k=0..n} (-1)^k*binomial(n, k)*A000831(k).at n=8A343843