Odd numbers k such that k/(1+A347381(k)) obtains record values, where A347381 gives the distance from n to the nearest common ancestor of n and sigma(n) in the Doudna-tree.

A386423

Odd numbers k such that k/(1+A347381(k)) obtains record values, where A347381 gives the distance from n to the nearest common ancestor of n and sigma(n) in the Doudna-tree.

Terms

    a(0) =1a(1) =3a(2) =5a(3) =9a(4) =13a(5) =15a(6) =35a(7) =63a(8) =77a(9) =81a(10) =99a(11) =105a(12) =135a(13) =175a(14) =189a(15) =455a(16) =765a(17) =775a(18) =819a(19) =945a(20) =2125a(21) =6375a(22) =9261a(23) =21275a(24) =43011a(25) =43125a(26) =43475a(27) =44469a(28) =45441a(29) =45617

External references