First integer reached when starting with n/floor(log_2(n)) and iterating the map x -> x*ceiling(x) A075107(n) times, or -1 if no integer is ever reached.

A075108

First integer reached when starting with n/floor(log_2(n)) and iterating the map x -> x*ceiling(x) A075107(n) times, or -1 if no integer is ever reached.

Terms

    a(0) =2a(1) =3a(2) =2a(3) =60a(4) =3a(5) =14a(6) =8a(7) =3a(9) =220a(10) =4a(11) =227370a(12) =560a(13) =5a(14) =4a(15) =218790a(16) =268065a(17) =570a(18) =5a(19) =1008a(20) =33a(21) =1458660a(22) =6a(23) =1925a(24) =2093a(25) =2268a(26) =7a(27) =58a(28) =60a(29) =62a(30) =2016

External references