3657830400

Appears in sequences

• Numbers that are the product of the squares of some subset of their digits.at n=17A061863
• Numbers that are the product of the squares of their nonzero digits.at n=2A115385
• a(n) = Product_{k=1..n} k^d(k), where d(k) = number of divisors of k.at n=6A175493
• Permanent of the n-th principal submatrix of (A134446 in square format).at n=6A203264
• Triangle T[r,c]=(r-1)*binomial(r-1,c-1)*(c-1)!*A093883(c), read by rows.at n=14A218566
• Perfect powers which are the product of distinct factorials.at n=5A227652
• Denominators of expansion of PolyLog(-2, x)/PolyLog(2, x), where PolyLog(m, x) is the polylogarithm function.at n=6A273698
• Partial products of A061017.at n=15A282165
• a(n) = Product_{d|n} lcm(tau(d), sigma(d)) where tau(k) is the number of divisors of k (A000005) and sigma(k) is the sum of divisors of k (A000203).at n=23A334806
• a(n) is the least k such that A349281(k) = n.at n=14A349282
• Triangle read by rows, (2, 2)-Lah numbers.at n=21A371081
• Perfect squares which are the product of three distinct factorials.at n=4A389555
• Perfect squares which are the product of four distinct factorials.at n=3A390005