# A151438 (b-file synthesized from sequence entry)
0 1
1 0
2 3
3 3
4 25
5 58
6 302
7 1000
8 4572
9 17759
10 78402
11 327746
12 1445868
13 6280646
14 27957450
15 124210073
16 558853524
17 2520567027
18 11454557485
19 52237087015
20 239457095960
21 1101503925205
22 5086830804442
23 23565165397859
24 109513332449237
25 510337183030398
26 2384498982840799
27 11168045680153978
28 52425419487599722