440640

Appears in sequences

• Value of phi in arithmetic progression of at least 5 terms having the same value of phi in A050515.at n=9A050517
• Product of all n - d, where d < n and d is a divisor of n.at n=17A072513
• Duplicate of A072513.at n=17A080499
• a(n) = Product_{j=0..n-1} (2^j + 2).at n=6A139486
• Irregular triangular array T; row n shows the coefficients of the (n-1)-st polynomial in the obverse convolution s(x)**t(x), where s(x) = 2^n and t(x) = x+2. See Comments.at n=20A375046