Nonnegative y such that y^2 = C(x,0) + C(x,1) + C(x,2) + C(x,3) is soluble in integers.
A047695
Nonnegative y such that y^2 = C(x,0) + C(x,1) + C(x,2) + C(x,3) is soluble in integers.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =8a(4) =24a(5) =260a(6) =8672
External references
- oeis: A047695