Years of recorded observations of Comet Halley.

Terms

a(0) =-240a(1) =-164a(2) =-87a(3) =-12a(4) =66a(5) =141a(6) =218a(7) =295a(8) =374a(9) =451a(10) =530a(11) =607a(12) =684a(13) =760a(14) =837a(15) =912a(16) =989a(17) =1066a(18) =1145a(19) =1222a(20) =1301a(21) =1378a(22) =1456a(23) =1531a(24) =1607a(25) =1682a(26) =1759a(27) =1835a(28) =1910a(29) =1986