234260

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=22A057781
• a(n) = 16*n^4 + 4.at n=11A222655
• a(n) = 2*binomial(10*n+4,n)/(5*n+2).at n=5A234527