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.

A022855

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) =35a(6) =97a(7) =271a(8) =761a(9) =2143a(10) =6042a(11) =17043a(12) =48081a(13) =135656a(14) =382752a(15) =1079939a(16) =3047074a(17) =8597406a(18) =24257838a(19) =68444231a(20) =193117503a(21) =544886995a(22) =1537415492a(23) =4337865331a(24) =12239421132a(25) =34533905116a(26) =97438480950a(27) =274925686472a(28) =775711324186

External references