# A264200 (b-file synthesized from sequence entry) 0 0 1 1 2 5 3 19 4 69 5 235 6 789 7 2603 8 8533 9 27819 10 90453 11 293547 12 951637 13 3082923 14 9983317 15 32320171 16 104617301 17 338602667 18 1095849301 19 3546458795 20 11477013845 21 37141260971 22 120193373525 23 388957383339 24 1258699445589 25 4073250794155 26 13181344109909 27 42655780874923