356040

Appears in sequences

• a(n) = 3*(n + 1)*(n + 2)*(3*n + 1)*(3*n + 4)/4.at n=14A268685
• Number of permutations of [n] avoiding {3412, 4132, 1324}.at n=13A294694
• Expansion of Product_{i>=1, j>=1} 1 / (1 - x^(i*j*(j + 1)/2)).at n=41A327744