730028domain: NAppears in sequencesNumber of alkyls S C_{n+4} H_{2n+4} with n carbon atoms.at n=15A000650Square array A(row,col) = Sum_{k=0..row} binomial(row,k)*A002110(col+k), read by descending antidiagonals as A(0,0), A(0,1), A(1,0), A(0,2), A(1,1), A(2,0), ...at n=34A276586Transpose of square array A276586.at n=29A276587