# A050624 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 13 5 42 6 138 7 458 8 1525 9 5081 10 16936 11 56451 12 188168 13 627226 14 2090752 15 6969172 16 23230574 17 77435244 18 258117480 19 860391598 20 2867971991 21 9559906636 22 31866355454 23 106221184845 24 354070616148 25 1180235387158 26 3934117957192