1401409

Properties

Appears in sequences

• Expansion of e.g.f.: (exp(x/(1-x))*(2-x)-1+x)/(1-x)^3.at n=7A070779
• Triangle, read by rows, T(n,k) = Sum_{j=1..k} binomial(n-1, j-1)*binomial(k, j - 1)*(j-1)!.at n=43A176122
• Prime numbers generated by concatenating k, k, and 9.at n=29A210514
• Prime numbersat n=107218