The 300-degree spoke (or ray) of a hexagonal spiral of Ulam.

Terms

a(0) =1a(1) =14a(2) =51a(3) =112a(4) =197a(5) =306a(6) =439a(7) =596a(8) =777a(9) =982a(10) =1211a(11) =1464a(12) =1741a(13) =2042a(14) =2367a(15) =2716a(16) =3089a(17) =3486a(18) =3907a(19) =4352a(20) =4821a(21) =5314a(22) =5831a(23) =6372a(24) =6937a(25) =7526a(26) =8139a(27) =8776a(28) =9437a(29) =10122