4294967264domain: NAppears in sequencesa(n) = 2^(2*n) - 2*n.at n=16A100103a(n) = the largest positive multiple of n with exactly n digits when written in binary.at n=31A162214Row sums of triangle A166455.at n=31A166456a(n) = 32*(2^n - 1).at n=27A175165