# A156159 (b-file synthesized from sequence entry) 1 169 2 289 3 625 4 2809 5 7225 6 18769 7 93025 8 243049 9 635209 10 3157729 11 8254129 12 21576025 13 107267449 14 280395025 15 732947329 16 3643933225 17 9525174409 18 24898630849 19 123786459889 20 323575532569 21 845820499225 22 4205095700689