# A204452 (b-file synthesized from sequence entry)
0 0
1 1
2 2
3 11
4 34
5 212
6 804
7 5567
8 24014
9 178148
10 839596
11 6501420
12 32658872
13 259775440
14 1368965576
15 11080668871
16 60613092662
17 496461841956
18 2798385807012
19 23113333523180
20 133539494791000
21 1109722749130576
22 6545965568001272