# A216362 (b-file synthesized from sequence entry) 1 2 2 7 3 37 4 127 5 401 6 1151 7 3137 8 8191 9 51199 10 294911 11 1605631 12 3686401 13 209715199 14 10485760001 15 8131987999031297 16 155444555888459777 17 139751824747451132596033945601 18 3429749540386513119227714380314826357885676055272856607522817