Expansion of (Sum_{k>=0} binomial(3*k,k) * x^k)^4.
A378504
Expansion of (Sum_{k>=0} binomial(3*k,k) * x^k)^4.
Terms
- a(0) =1a(1) =12a(2) =114a(3) =984a(4) =8055a(5) =63744a(6) =492702a(7) =3742704a(8) =28053423a(9) =208057260a(10) =1529802648a(11) =11168142048a(12) =81041199876a(13) =585045970992
External references
- oeis: A378504