39768509domain: NAppears in sequencesa(0)=1, a(n)=2^n+n^2-2*a(n-1).at n=28A082384An oscillating sequence: a(n) = n^2 + 2^(n-1) - 2*a(n-1), n>0, with a(1) = 1.at n=28A238315The bisection of A238315 that remains constant with changes in the offset of the exponent of the second term.at n=14A239367