914760

Appears in sequences

• Triangle T(n,m)=m*n*binomial(m+n,m)^2/(2*(m+n)) read by rows.at n=25A131635
• Triangle T(n, k) = [x^k](p(x, n, q)) where p(x,n,q) = Product_{j=1..n} (x + q^j) + Product_{j=1..n} (x*q^j + 1), p(x, 0, q) = 1, and q = 3, read by rows.at n=17A173049
• Triangle T(n, k) = [x^k](p(x, n, q)) where p(x,n,q) = Product_{j=1..n} (x + q^j) + Product_{j=1..n} (x*q^j + 1), p(x, 0, q) = 1, and q = 3, read by rows.at n=18A173049
• Highly abundant numbers (A002093) whose largest prime factor has power greater than 1.at n=27A181310
• Expansion of 1/((1-3x)(1-9x)(1-27x)(1-81x)).at n=3A226804