a(n+1) = a(n)/2 if 2|a(n), a(n)/3 if 3|a(n), a(n)/5 if 5|a(n), a(n)/7 if 7|a(n), a(n)/11 if 11|a(n), a(n)/13 if 13|a(n), otherwise 17*a(n)+1.

A057534

a(n+1) = a(n)/2 if 2|a(n), a(n)/3 if 3|a(n), a(n)/5 if 5|a(n), a(n)/7 if 7|a(n), a(n)/11 if 11|a(n), a(n)/13 if 13|a(n), otherwise 17*a(n)+1.

Terms

    a(0) =61a(1) =1038a(2) =519a(3) =173a(4) =2942a(5) =1471a(6) =25008a(7) =12504a(8) =6252a(9) =3126a(10) =1563a(11) =521a(12) =8858a(13) =4429a(14) =75294a(15) =37647a(16) =12549a(17) =4183a(18) =71112a(19) =35556a(20) =17778a(21) =8889a(22) =2963a(23) =50372a(24) =25186a(25) =12593a(26) =1799a(27) =257a(28) =4370a(29) =2185

External references