218868

Appears in sequences

• a(n) = n! * Sum_{k=1..n} binomial(n,k)/k.at n=6A103213
• Triangle read by rows: row n gives coefficients T(n,k), in descending powers of m, of a polynomial Q_n(m) (of degree n - 1) in an expression for the number of subdivisions A(m,n) of a grid with two rows.at n=34A336244
• Array read by ascending antidiagonals. A(n, k) = k! * [x^k] log((1 - x) / (1 - 2*x)) / (1 - x)^n, for 0 <= k <= n.at n=43A355257