Sanyo formulated his writing plan by following the format of "Shiki": "3 volumes of ki (Annals), 5 volumes of sho (Treatises), 9 volumes of gi (Theories), 13 volumes of seika (Hereditary Houses), 23 volumes of saku (Policies)".
頼山陽はこれを模倣して「三紀・五書・九議・十三世家・二十三策」の著述構想を立てている。