# A336012 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 7 5 35 6 121 7 847 8 3907 9 35163 10 202741 11 2230151 12 15430207 13 200592691 14 1619195761 15 24287936415 16 224061282907 17 3809041809419 18 39531606447181 19 751100522496439 20 8661323866026007 21 181887801186546147 22 2307185279184885001 23 53065261421252355023 24 734307168916191403507 25 18357679222904785087675