a(n) = Sum_{k=0..n} binomial(3*n, k) * p(k), where p(k) is the partition function A000041.
A356284
a(n) = Sum_{k=0..n} binomial(3*n, k) * p(k), where p(k) is the partition function A000041.
Terms
- a(0) =1a(1) =4a(2) =37a(3) =334a(4) =3280a(5) =29437a(6) =282253a(7) =2517904a(8) =23209785a(9) =206685325a(10) =1858085653a(11) =16266231810a(12) =144339750406
External references
- oeis: A356284