1022120

Appears in sequences

• a(n) = 4*n^4 + 24*n^3 + 48*n^2 + 36*n + 8.at n=21A086302
• Nonnegative values x of solutions (x, y) to the Diophantine equation x^2+(x+601)^2 = y^2.at n=14A111258