# A033482 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 12 4 30 5 74 6 185 7 460 8 1150 9 2866 10 7165 11 17868 12 44670 13 111418 14 278545 15 694796 16 1736990 17 4332770 18 10831925 19 27019404 20 67548510 21 168494762 22 421236905 23 1050744652 24 2626861630 25 6552514834 26 16381287085