Starting values k of Collatz orbits that achieve a new minimum of Product_{j == 4 mod 6 in "3x+1" orbit of k} (j-1)/j.

A391017

Starting values k of Collatz orbits that achieve a new minimum of Product_{j == 4 mod 6 in "3x+1" orbit of k} (j-1)/j.

Terms

    a(0) =1a(1) =3a(2) =7a(3) =9a(4) =25a(5) =27a(6) =33a(7) =39a(8) =57a(9) =123a(10) =219a(11) =505a(12) =519a(13) =559a(14) =745a(15) =993a(16) =2649a(17) =3531a(18) =12555a(19) =35271a(20) =117439a(21) =141085a(22) =156585a(23) =167211a(24) =594529a(25) =626335a(26) =668845a(27) =792705a(28) =891793a(29) =1056939

External references