a(n) equals the least sum of the squares of the coefficients in ((1 + x^k)^2 + x^p)^n found at sufficiently large p for some fixed k>0.
A186378
a(n) equals the least sum of the squares of the coefficients in ((1 + x^k)^2 + x^p)^n found at sufficiently large p for some fixed k>0.
Terms
- a(0) =1a(1) =7a(2) =95a(3) =1609a(4) =30271a(5) =606057a(6) =12636689a(7) =271026455a(8) =5934011839a(9) =131978406553
External references
- oeis: A186378