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

A022873

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

Terms

    a(0) =2a(1) =1a(2) =1a(3) =2a(4) =6a(5) =19a(6) =61a(7) =197a(8) =638a(9) =2068a(10) =6706a(11) =21747a(12) =70525a(13) =228714a(14) =741726a(15) =2405442a(16) =7800930a(17) =25298683a(18) =82044498a(19) =266073128a(20) =862884304a(21) =2798363473a(22) =9075188983a(23) =29431149984a(24) =95446231592a(25) =309535411633

External references