# A223167 (b-file synthesized from sequence entry) 1 0 2 3 3 7 4 15 5 36 6 127 7 337 8 752 9 1699 10 3101 11 11585 12 38261 13 108969 14 314888 15 1052616 16 3214630 17 7956587 18 21949553 19 99877773 20 222744641 21 597394252 22 1932355206 23 7250186214 24 17146907276 25 55160980937 26 155891678119 27 508666658004 28 1427745660372