Least odd number d such that the Collatz (3x+1) iteration of d has the following property: if the length of the iteration is b and the maximum value occurs at c, the ratio c/b is 1/n.

A224994

Least odd number d such that the Collatz (3x+1) iteration of d has the following property: if the length of the iteration is b and the maximum value occurs at c, the ratio c/b is 1/n.

Terms

    a(0) =1a(1) =3a(2) =5a(3) =21a(4) =13a(5) =53a(6) =67a(7) =141a(8) =93a(9) =61a(10) =37a(11) =149a(12) =101a(13) =65a(14) =261a(15) =173a(16) =693a(17) =461a(18) =305a(19) =209a(20) =813a(21) =541a(22) =2165a(23) =1445a(24) =961a(25) =657a(26) =2315a(27) =1709a(28) =1169a(29) =4557

External references