Expansion of sin(sin(x)^2)/2.A024254Expansion of sin(sin(x)^2)/2.Terms a(0) =0a(1) =1a(2) =-4a(3) =-44a(4) =3296a(5) =-125744a(6) =2079296a(7) =275799616a(8) =-47379887104External referencesoeis: A024254