Coefficient of x^n in Product_{k>=1} (1+x^k)^(2*n).
A304443
Coefficient of x^n in Product_{k>=1} (1+x^k)^(2*n).
Terms
- a(0) =1a(1) =2a(2) =10a(3) =62a(4) =394a(5) =2562a(6) =16966a(7) =113794a(8) =770442a(9) =5254334a(10) =36042250a(11) =248403586a(12) =1718732998a(13) =11931569028a(14) =83064794746a(15) =579696375972
External references
- oeis: A304443