# A056300 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 5 5 10 6 35 7 102 8 360 9 1232 10 4427 11 15934 12 58465 13 215250 14 799593 15 2983204 16 11187200 17 42109450 18 159081482 19 602809326 20 2290679807 21 8726308212 22 33318645341 23 127479700198 24 488672244040 25 1876500180280