Expansion of (1-x^6) / (1-x)^6.

Terms

a(0) =1a(1) =6a(2) =21a(3) =56a(4) =126a(5) =252a(6) =461a(7) =786a(8) =1266a(9) =1946a(10) =2877a(11) =4116a(12) =5726a(13) =7776a(14) =10341a(15) =13502a(16) =17346a(17) =21966a(18) =27461a(19) =33936a(20) =41502a(21) =50276a(22) =60381a(23) =71946a(24) =85106a(25) =100002a(26) =116781a(27) =135596a(28) =156606a(29) =179976