a(n) = Sum_{k=0..n} binomial(3*k, k) * p(k), where p(k) is the partition function A000041.
A356286
a(n) = Sum_{k=0..n} binomial(3*k, k) * p(k), where p(k) is the partition function A000041.
Terms
- a(0) =1a(1) =4a(2) =34a(3) =286a(4) =2761a(5) =23782a(6) =227986a(7) =1972186a(8) =18152548a(9) =158757298a(10) =1420647928a(11) =12258704248a(12) =108637887148a(13) =929002856992
External references
- oeis: A356286