# A228178 (b-file synthesized from sequence entry) 0 1 1 4 2 14 3 47 4 157 5 529 6 1805 7 6238 8 21812 9 77062 10 274738 11 987276 12 3572568 13 13007398 14 47617798 15 175171543 16 647227453 17 2400843823 18 8937670603 19 33380986153 20 125045165773 21 469700405533 22 1768752809221 23 6676088636479 24 25252913322299 25 95712549267151 26 363441602176007 27 1382467779393307 28 5267219868722803