68228

Appears in sequences

• (8*n^3 + 3*n^2 + n) / 6.at n=36A219054
• Expansion of Product_{k>=1} (1 + x^(3*k-1))^(3*k-1) * (1 + x^(3*k-2))^(3*k-2).at n=28A262924