# A318368 (b-file synthesized from sequence entry) 1 1 2 3 3 13 4 27 5 81 6 183 7 449 8 987 9 2317 10 5043 11 11265 12 24399 13 53249 14 114243 15 245853 16 523227 17 1114113 18 2357175 19 4980737 20 10480587 21 22020557 22 46126083 23 96468993 24 201302799 25 419430481 26 872361987 27 1811941645 28 3757981275 29 7784628225 30 16105886823 31 33285996545 32 68718951387 33 141733932045