# A173199 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 2 4 3 5 5 6 7 7 11 8 16 9 24 10 35 11 50 12 72 13 103 14 147 15 209 16 297 17 421 18 597 19 845 20 1196 21 1692 22 2393 23 3383 24 4782 25 6759 26 9552 27 13498 28 19073 29 26949 30 38077 31 53799 32 76011 33 107393 34 151729 35 214368 36 302865 37 427895 38 604538 39 854102