324289

Appears in sequences

• Matrix product of unsigned Lah-triangle |A008297(n,k)| and unsigned Stirling1-triangle |A008275(n,k)|.at n=31A079638
• Exponential Riordan array [1, log((1-x)/(1-2x))].at n=40A131222
• (n+1)^2 concatenated with n^2.at n=17A246972