Twelve iterations of Reverse and Add are needed to reach a palindrome.

Terms

a(0) =2069a(1) =2159a(2) =2249a(3) =2339a(4) =2429a(5) =2519a(6) =2609a(7) =2699a(8) =2789a(9) =2879a(10) =2969a(11) =3068a(12) =3158a(13) =3248a(14) =3338a(15) =3428a(16) =3518a(17) =3608a(18) =3698a(19) =3788a(20) =3878a(21) =3968a(22) =4067a(23) =4157a(24) =4247a(25) =4337a(26) =4427a(27) =4517a(28) =4607a(29) =4697