a(1) = 13; for n > 1, if a(n-1) is even, then a(n) = a(n-1)/2; otherwise, a(n) = a(n-1) + prime(a(n-1)).

A358166

a(1) = 13; for n > 1, if a(n-1) is even, then a(n) = a(n-1)/2; otherwise, a(n) = a(n-1) + prime(a(n-1)).

Terms

    a(0) =13a(1) =54a(2) =27a(3) =130a(4) =65a(5) =378a(6) =189a(7) =1318a(8) =659a(9) =5592a(10) =2796a(11) =1398a(12) =699a(13) =5972a(14) =2986a(15) =1493a(16) =13996a(17) =6998a(18) =3499a(19) =36102a(20) =18051a(21) =218932a(22) =109466a(23) =54733a(24) =730334a(25) =365167a(26) =5622764a(27) =2811382a(28) =1405691a(29) =23685544

External references