a(n) = 20^n * cos(n*A), where A is the angle opposite side BC in a triangle ABC having sidelengths |BC|=3, |CA|=4, |AB|=5; ABC is the smallest integer-sided right triangle.
A376285
a(n) = 20^n * cos(n*A), where A is the angle opposite side BC in a triangle ABC having sidelengths |BC|=3, |CA|=4, |AB|=5; ABC is the smallest integer-sided right triangle.
Terms
- a(0) =1a(1) =16a(2) =112a(3) =-2816a(4) =-134912a(5) =-3190784a(6) =-48140288a(7) =-264175616a(8) =10802495488a(9) =451350102016
External references
- oeis: A376285