Least k>1 such that reverse complement of first n terms of A022303 repeats beginning at k-th term.

Terms

a(0) =2a(1) =3a(2) =2a(3) =19a(4) =18a(5) =17a(6) =16a(7) =24a(8) =23a(9) =22a(10) =21a(11) =20a(12) =58a(13) =57a(14) =341a(15) =340a(16) =339a(17) =338a(18) =337a(19) =336a(20) =335a(21) =334a(22) =333a(23) =332a(24) =331a(25) =330a(26) =329a(27) =328a(28) =327a(29) =326