902444517domain: NAppears in sequencesNumber of 4-ary Lyndon words whose trace and subtrace are both 0 mod 4.at n=18A068596Number of 4-ary Lyndon words of length n over Z_4 with trace 1 and subtrace 3.at n=18A074409Number of 4-ary Lyndon words of length n over Z_4 with trace 2 and subtrace 0.at n=18A074410