# A077841 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 15 4 47 5 149 6 469 7 1479 8 4663 9 14701 10 46349 11 146127 12 460703 13 1452485 14 4579333 15 14437527 16 45518023 17 143507293 18 452443709 19 1426445343 20 4497236399 21 14178696245 22 44701992373 23 140934546279 24 444332462167 25 1400872547917 26 4416611574893 27 13924505717871