# A138314 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 5 5 12 6 37 7 129 8 465 9 1912 10 8449 11 39481 12 200081 13 1069470 14 6043361 15 36120082 16 226063729 17 1484564600 18 10184907985 19 72814137773 20 542009067393 21 4188018707130 22 33562233856177 23 278441210021464 24 2387929437251657