15# {{1,1375},{3,1473},{7,1673},{8,1787},{12,1888},{1,2910},{3,3009},{6,3109},{7,3207},{8,3307},{10,3407},{2,4265},{4,4446},{6,4629},{7,4809},{9,4975},{7,5323},{5,5685},{3,6032},{1,6379},{1,7419},{4,7420},{10,7436},{9,7783},{4,8146},{6,8147},{10,8147},{13,8510},{2,8857},{5,8873},{10,8890},{9,9237},{5,9584},{7,9600},{10,9617},{14,9963},{3,10327},{6,10360},{10,10360},{9,10707},{3,11104},{8,11104},{10,11104},{15,11464},{3,11828},{6,11844},{14,11844},{3,12539},{8,12554},{12,12554},{5,12901},{1,13266},{4,13266},{10,13266},{9,13615},{4,13978},{6,13995},{10,13996},{13,14358},{2,14721},{5,14738},{10,14739},{9,15086},{5,15432},{7,15449},{10,15449},{14,15796},{3,16159},{7,16175},{12,16192},{3,16539},{7,16902},{3,17266},{10,17613},{3,17976},{3,18340},{7,18356},{3,18720},{1,19083},{4,19100},{10,19101},{1,19463},{9,19480},{4,19843},{6,19860},{10,19861},{1,20207},{13,20240},{2,20587},{5,20603},{10,20603},{2,20967},{9,20983},{5,21331},{7,21363},{10,21363},{2,21711},{14,21744},{3,22091}}