# A148514 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 5 4 17 5 36 6 134 7 335 8 1333 9 3732 10 15504 11 46870 12 200458 13 640494 14 2798585 15 9330139 16 41453055 17 142971527 18 643754048 19 2282825370 20 10391082024 21 37709321557 22 173189706730 23 640888377597 24 2965484008829 25 11158376134888 26 51957479350157 27 198344225237265 28 928535979959713 29 3589580096542716