# A233694 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 5 4 11 5 23 6 49 7 102 8 212 9 443 10 926 11 1939 12 4064 13 8509 14 17816 15 37303 16 78105 17 163544 18 342454 19 717076 20 1501502 21 3144024 22 6583334 23 13784969