# A187634 (b-file synthesized from sequence entry) 1 24 2 1648 3 14044 4 106892 5 306320 6 1848504 7 3549080 8 9810932 9 19774644 10 44235868 11 65964188 12 188874084 13 261388436 14 423186604 15 755637740 16 1198594384 17 1533264084 18 2755012728 19 3428332204 20 5907685880 21 8225807516