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

Terms

a(0) =3a(1) =2a(2) =10a(3) =15a(4) =14a(5) =13a(6) =38a(7) =146a(8) =145a(9) =144a(10) =143a(11) =142a(12) =222a(13) =221a(14) =220a(15) =219a(16) =218a(17) =217a(18) =216a(19) =215a(20) =214a(21) =374a(22) =373a(23) =372a(24) =574a(25) =573a(26) =572a(27) =571a(28) =570a(29) =569