Number of step cyclic shifted sequence structures using a maximum of three different symbols.

A056430

Number of step cyclic shifted sequence structures using a maximum of three different symbols.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =6a(4) =6a(5) =22a(6) =16a(7) =66a(8) =83a(9) =300a(10) =296a(11) =2243a(12) =1778a(13) =9780a(14) =20640a(15) =58428a(16) =79554a(17) =600798a(18) =567544a(19) =3671978a(20) =6935746a(21) =23785912a(22) =31017008a(23) =246156513a(24) =282456333a(25) =1357927400a(26) =2615206733a(27) =11358512518

External references