216735625

Appears in sequences

• q-factorial numbers 4!_q.at n=24A069779
• Square array T(n, k) = Product_{j=1..n} ( Sum_{i=0..j-1} ((k+1)^3 - (k+1))^i ) with T(n, 0) = n!, read by antidiagonals.at n=25A156882