Triangle in which n-th row gives ascending sequence of numbers derived from the (3x+1) problem, beginning with n. Numbers in one row share the same number of iteration steps required to reach the value of '1' when applying the (3x+1) algorithm. Each row terminates with a power of 2.
A069323
Triangle in which n-th row gives ascending sequence of numbers derived from the (3x+1) problem, beginning with n. Numbers in one row share the same number of iteration steps required to reach the value of '1' when applying the (3x+1) algorithm. Each row terminates with a power of 2.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =20a(4) =128a(5) =4a(6) =5a(7) =32a(8) =6a(9) =40a(10) =256a(11) =7a(12) =44a(13) =272a(14) =1664a(15) =10240a(16) =65536a(17) =8a(18) =9a(19) =56a(20) =352a(21) =2176a(22) =13312a(23) =81920a(24) =524288a(25) =10a(26) =64a(27) =11a(28) =68a(29) =416
External references
- oeis: A069323