a(n) = dot_product(1,2,...,n)*(7,8,...,n,1,2,3,4,5,6).

Terms

a(0) =119a(1) =156a(2) =204a(3) =265a(4) =341a(5) =434a(6) =546a(7) =679a(8) =835a(9) =1016a(10) =1224a(11) =1461a(12) =1729a(13) =2030a(14) =2366a(15) =2739a(16) =3151a(17) =3604a(18) =4100a(19) =4641a(20) =5229a(21) =5866a(22) =6554a(23) =7295a(24) =8091a(25) =8944a(26) =9856a(27) =10829a(28) =11865a(29) =12966