a(n) equals the least sum of the squares of the coefficients in ((1 + x^k)^3 + x^p)^n found at sufficiently large p for some fixed k>0.
A186392
a(n) equals the least sum of the squares of the coefficients in ((1 + x^k)^3 + x^p)^n found at sufficiently large p for some fixed k>0.
Terms
- a(0) =1a(1) =21a(2) =1005a(3) =57117a(4) =3515661a(5) =227676321a(6) =15287457741
External references
- oeis: A186392