a(1) = 1, a(n) = n+a(n-1) if n does not divide a(n-1), else a(n) = n*a(n-1).

Terms

a(0) =1a(1) =3a(2) =9a(3) =13a(4) =18a(5) =108a(6) =115a(7) =123a(8) =132a(9) =142a(10) =153a(11) =165a(12) =178a(13) =192a(14) =207a(15) =223a(16) =240a(17) =258a(18) =277a(19) =297a(20) =318a(21) =340a(22) =363a(23) =387a(24) =412a(25) =438a(26) =465a(27) =493a(28) =14297a(29) =14327