Number of triangular partitions of n of order 5.

Terms

a(0) =1a(1) =5a(2) =15a(3) =39a(4) =90a(5) =189a(6) =375a(7) =707a(8) =1276a(9) =2226a(10) =3768a(11) =6210a(12) =10002a(13) =15780a(14) =24432a(15) =37198a(16) =55772a(17) =82443a(18) =120300a(19) =173445a(20) =247284a(21) =348916a(22) =487555a(23) =675088a(24) =926784a(25) =1262091a(26) =1705644a(27) =2288518a(28) =3049654a(29) =4037611