# A127509 (b-file synthesized from sequence entry) 1 3 2 27 3 147 4 675 5 2883 6 11907 7 48387 8 195075 9 783363 10 3139587 11 12570627 12 50307075 13 201277443 14 805208067 15 3221028867 16 12884508675 17 51538821123 18 206156857347 19 824630575107 20 3298528591875 21 13194126950403 22 52776532967427