Integer part of ((4th elementary symmetric function of 2,3,...,n+4)/(2+3+...+n+4)).

Terms

a(0) =8a(1) =52a(2) =189a(3) =526a(4) =1242a(5) =2609a(6) =5024a(7) =9043a(8) =15411a(9) =25108a(10) =39392a(11) =59842a(12) =88414a(13) =127496a(14) =179963a(15) =249241a(16) =339377a(17) =455103a(18) =601915a(19) =786146a(20) =1015050a(21) =1296888a(22) =1641014a(23) =2057967a(24) =2559573a(25) =3159036a(26) =3871051a(27) =4711904a(28) =5699589a(29) =6853918