In base 3: smallest number that requires n Reverse and Add! steps to reach a palindrome.

Terms

a(0) =0a(1) =3a(2) =5a(3) =15a(4) =17a(5) =263a(6) =170a(7) =509a(8) =491a(9) =322a(10) =266a(11) =222a(12) =161a(13) =494a(14) =260a(15) =106a(16) =95a(17) =78a(18) =53a(19) =2425a(20) =1466a(21) =9717a(22) =59583a(23) =38878a(24) =38798a(25) =33515a(26) =39440a(27) =32857a(28) =37340a(29) =238849