# A108365 (b-file synthesized from sequence entry) 1 2 2 5 3 6 4 12 5 17 6 19 7 61 8 102 9 195 10 447 11 1250 12 1329 13 1935 14 3930 15 5837 16 7176 17 8724 18 20881 19 23936 20 61868 21 91920