279845

Appears in sequences

• a(n) = n^4+4 = (n^2-2*n+2)*(n^2+2*n+2) = ((n-1)^2+1)*((n+1)^2+1).at n=23A057781
• G.f. A(x) satisfies A(x) = 1 + x*A(x)^4 / (1 - x*A(x)^5).at n=7A364765