# A217214 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 2
4 38
5 322
6 2112
7 12210
8 65494
9 334334
10 1647776
11 7910916
12 37216060
13 172263652
14 786879680
15 3554999370
16 15912092070
17 70656410550
18 311584194240
19 1365760098780
20 5954667085620
21 25839361664220
22 111651277670400
23 480603648082740
24 2061623609421948
25 8815899506583852
26 37590408710959552