# A304964 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 13 4 47 5 133 6 443 7 1333 8 4263 9 13143 10 41419 11 128791 12 403815 13 1259639 14 3941579 15 12310299 16 38492034 17 120271953 18 375964616 19 1174935195 20 3672413322 21 11477465221 22 35872928244 23 112117013835 24 350417746650 25 1095202995267 26 3422999582632 27 10698350241417 28 33437065631262 29 104505382585023