# A229571 (b-file synthesized from sequence entry)
1 0
2 6
3 76
4 312
5 924
6 2440
7 6108
8 14840
9 35356
10 83016
11 192636
12 442552
13 1007868
14 2277704
15 5112220
16 11403768
17 25297500
18 55837384
19 122684220
20 268436408
21 585106492