# A019203 (b-file synthesized from sequence entry)
3 0
4 0
5 4
6 6
7 6
8 32
9 72
10 120
11 316
12 804
13 1690
14 3896
15 10058
16 23656
17 54956
18 140334
19 351156
20 863336
21 2215008
22 5734726
23 14747386
24 38509606
25 101530298
26 267478776
27 707696286
28 1881659158
29 5006865152
30 13336830220
31 35597715792