Analog of A060410 for the 5x+1 problem (cf. A133419).

Terms

a(0) =6a(1) =66a(2) =216a(3) =366a(4) =516a(5) =666a(6) =816a(7) =1116a(8) =2016a(9) =4866a(10) =5766a(11) =8616a(12) =9516a(13) =229866a(14) =286116a(15) =473616a(16) =737016a(17) =3230766a(18) =4438266a(19) =6260016a(20) =10637016a(21) =107662496a(22) =117661116a(23) =152291166a(24) =176254866a(25) =179900766a(26) =201566166a(27) =230949516