# A321737 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 9 4 37 5 152 6 780 7 3965 8 23460 9 141471 10 944217 11 6445643 12 48075092 13 364921557 14 2974423953 15 24847873439 16 219611194148 17 1987556951714 18 18930298888792 19 184244039718755 20 1874490999743203 21 19510832177784098 22 210941659716920257 23 2331530519337226199 24 26692555830628617358