Sequence satisfies T^2(a)=a, where T is defined below.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =8a(6) =10a(7) =13a(8) =17a(9) =21a(10) =27a(11) =32a(12) =39a(13) =47a(14) =56a(15) =67a(16) =78a(17) =91a(18) =107a(19) =124a(20) =143a(21) =165a(22) =187a(23) =214a(24) =244a(25) =276a(26) =312a(27) =351a(28) =394a(29) =443