Sum of all odd numbers in Collatz (3x+1) trajectory of n.

Terms

a(0) =1a(1) =1a(2) =9a(3) =1a(4) =6a(5) =9a(6) =54a(7) =1a(8) =63a(9) =6a(10) =47a(11) =9a(12) =19a(13) =54a(14) =132a(15) =1a(16) =36a(17) =63a(18) =95a(19) =6a(20) =22a(21) =47a(22) =117a(23) =9a(24) =120a(25) =19a(26) =20262a(27) =54a(28) =76a(29) =132