Arises in classification of base sequences.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =4a(6) =5a(7) =17a(8) =27a(9) =44a(10) =98a(11) =84a(12) =175a(13) =475a(14) =331a(15) =491a(16) =1721a(17) =2241a(18) =1731a(19) =4552a(20) =3442a(21) =3677a(22) =15886a(23) =6139a(24) =10878a(25) =19516a(26) =10626a(27) =22895a(28) =31070a(29) =18831