# A114173 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 13 4 34 5 90 6 240 7 643 8 1729 9 4663 10 12607 11 34156 12 92702 13 251975 14 685759 15 1868310 16 5094753 17 13904028 18 37971570 19 103762963 20 283703065 21 776069296 22 2123892683 23 5814922585 24 15926507984 25 43636524179 26 119597410199