Numerator of the frequency of the n-th dropping time in the Collatz iteration.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =7a(6) =3a(7) =15a(8) =85a(9) =173a(10) =119a(11) =961a(12) =663a(13) =8045a(14) =17637a(15) =51033a(16) =54475a(17) =312455a(18) =663535a(19) =950235a(20) =5936673a(21) =1684037a(22) =39993895a(23) =87986917a(24) =128989251a(25) =205059181a(26) =949737339a(27) =2861515293a(28) =400296173a(29) =19018424205