2147483664domain: NAppears in sequencesa(n) = 2^n + ceiling(n/2).at n=31A134522Numbers of the form A019434(i) + A000668(j).at n=37A168335a(n) = 16*(2^n + 1).at n=27A175162a(n) = 2^(2*n - 1) + n.at n=15A221130