O.g.f.: Sum_{n>=0} Product_{k=1..n} sin(k*arcsin(2x)).
A177388
O.g.f.: Sum_{n>=0} Product_{k=1..n} sin(k*arcsin(2x)).
Terms
- a(0) =1a(1) =2a(2) =8a(3) =48a(4) =368a(5) =3488a(6) =39408a(7) =517536a(8) =7747552a(9) =130224448a(10) =2428303280a(11) =49745334816
External references
- oeis: A177388