2342880

Appears in sequences

• a(n) = n!*(1 - 1/2 + 1/3 - ... + c/n), where c = (-1)^(n+1).at n=9A024167
• Triangle T(n,k) read by rows, where e.g.f. for T(n,k) is exp(x*y)*log(1+x)/(1-x).at n=45A073480
• a(n) = n!*(2/1 - 3/2 + 4/3 - ... + s*(n+1)/n), where s = (-1)^(n+1).at n=9A080958
• Square array of coefficients of binomial polynomials, read by antidiagonals.at n=54A080959
• Square array of coefficients of binomial polynomials, read by antidiagonals.at n=64A080959
• Expansion of e.g.f. log(1+x)/(1-x)^2.at n=8A109792
• The number of permutations of {1,2,...,2n} that contain a cycle of length greater than n.at n=4A201546