a(n) = [ a(n-1)/a(1) + a(n-1)/a(2) + ... + a(n-1)/a(n-1) ] for n >= 3, with initial terms 1,1.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =13a(5) =36a(6) =100a(7) =281a(8) =791a(9) =2230a(10) =6288a(11) =17732a(12) =50007a(13) =141030a(14) =397734a(15) =1121696a(16) =3163427a(17) =8921555a(18) =25160735a(19) =70958773a(20) =200119253a(21) =564380046a(22) =1591675124a(23) =4488871850a(24) =12659600055a(25) =35702840027a(26) =100689814882a(27) =283967292614a(28) =800849851290