a(0) = a(1) = 1, and a(n) = a(n-1) + a( (a(n-1)-1) mod n ) for n>=2.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =10a(6) =13a(7) =23a(8) =36a(9) =72a(10) =73a(11) =86a(12) =87a(13) =123a(14) =196a(15) =197a(16) =202a(17) =398a(18) =399a(19) =798a(20) =1196a(21) =1994a(22) =2117a(23) =2118a(24) =2128a(25) =2130a(26) =4248a(27) =4284a(28) =8568a(29) =8655