A011545(n) reversed.

Terms

a(0) =3a(1) =13a(2) =413a(3) =1413a(4) =51413a(5) =951413a(6) =2951413a(7) =62951413a(8) =562951413a(9) =3562951413a(10) =53562951413a(11) =853562951413