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

A022862

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

Terms

    a(0) =1a(1) =2a(2) =3a(3) =5a(4) =9a(5) =18a(6) =39a(7) =85a(8) =188a(9) =418a(10) =935a(11) =2095a(12) =4703a(13) =10563a(14) =23730a(15) =53318a(16) =119803a(17) =269196a(18) =604890a(19) =1359211a(20) =3054202a(21) =6862926a(22) =15421311a(23) =34652408a(24) =77865590a(25) =174967654a(26) =393160585a(27) =883450421a(28) =1985154876a(29) =4460736908

External references