# A150798 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 31 4 131 5 570 6 2539 7 11522 8 52928 9 245650 10 1149746 11 5415455 12 25653903 13 122084657 14 583293895 15 2796508450 16 13446891577 17 64828739768 18 313266670347 19 1516866617277 20 7358336450862 21 35754069035483 22 173987364919794 23 847806685060067 24 4136272641380525 25 20202734585756903 26 98777698691606525