# A050572 (b-file synthesized from sequence entry) 1 3 2 4 3 7 4 10 5 15 6 18 7 19 8 24 9 27 10 39 11 60 12 84 13 111 14 171 15 192 16 222 17 639 18 954 19 2400 20 2587 21 4012 22 4359 23 5250 24 6012 25 6183 26 7344 27 10603 28 12403 29 13215 30 29154 31 78192 32 81294 33 103744 34 107991 35 174412 36 176479 37 203728 38 205158 39 251199 40 362268 41 580482