# A193112 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 13 4 63 5 328 6 1796 7 10200 8 59529 9 354837 10 2151079 11 13221261 12 82200739 13 516053099 14 3266812048 15 20829635112 16 133651716406 17 862342656359 18 5591505085491 19 36416212224801 20 238114435569354 21 1562560513492974 22 10287406857203911