# A019111 (b-file synthesized from sequence entry)
3 0
4 1
5 4
6 0
7 7
8 27
9 33
10 104
11 302
12 557
13 1436
14 3780
15 8483
16 21634
17 55744
18 137371
19 354163
20 916762
21 2354000
22 6149728
23 16101636
24 42225647
25 111610989
26 295365408
27 783336821
28 2085927781
29 5561256688
30 14852499506
31 39762167485