193401

Appears in sequences

• a(n) = (n-1)*(2*n-1)*(3*n-1)*(4*n-1).at n=10A033593
• a(n) = -Product_{k=0..n} (10*k - 1); deca-factorial numbers.at n=4A049212
• Triangle read by rows: T(n,k) = Product_{i=0..k-2} (i*n + n - 1).at n=39A153273
• Decuple factorial, 10-factorial, n!10, n!!!!!!!!!!.at n=39A288327