140664domain: NAppears in sequencesNumber of -n..n arrays x(0..4) of 5 elements with zero sum, and adjacent elements not equal modulo three (with -1 modulo 3 = 2).at n=15A199912Number of palindromes over an alphabet of size 4 of length 2n+1 having no (3/2)+ powers.at n=13A279626