Integer part of (4th elementary symmetric function of 3,4,...,n+5)/(3+4+...+n+5).

Terms

a(0) =20a(1) =110a(2) =368a(3) =961a(4) =2149a(5) =4316a(6) =8000a(7) =13931a(8) =23071a(9) =36655a(10) =56244a(11) =83769a(12) =121594a(13) =172567a(14) =240089a(15) =328176a(16) =441530a(17) =585615a(18) =766730a(19) =992095a(20) =1269934a(21) =1609562a(22) =2021481a(23) =2517473a(24) =3110702a(25) =3815817a(26) =4649060a(27) =5628378a(28) =6773533a(29) =8106230