108954domain: NAppears in sequencesG.f. A(x) satisfies: A(x) = x*exp(2*A(-x) + 2*A(-x^3)/3 + 2*A(-x^5)/5 + 2*A(-x^7)/7 + 2*A(-x^9)/9 + ...).at n=12A307538Number of ways to tile a 2 X n strip with squares, dominoes, and (straight and bent) trominoes.at n=8A387619