a(n) is the largest value in the '3x+1' trajectory of starting points producing a record number of steps.

A380138

a(n) is the largest value in the '3x+1' trajectory of starting points producing a record number of steps.

Terms

    a(0) =1a(1) =2a(2) =16a(3) =16a(4) =52a(5) =52a(6) =52a(7) =88a(8) =9232a(9) =9232a(10) =9232a(11) =9232a(12) =9232a(13) =9232a(14) =9232a(15) =9232a(16) =9232a(17) =9232a(18) =250504a(19) =190996a(20) =190996a(21) =250504a(22) =250504a(23) =250504a(24) =481624a(25) =975400a(26) =975400a(27) =497176a(28) =11003416a(29) =11003416

External references