# A150161 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 20
4 75
5 284
6 1121
7 4518
8 18673
9 77951
10 329625
11 1407327
12 6067266
13 26331095
14 114979744
15 504825030
16 2227872177
17 9874329662
18 43929749568
19 196113975301
20 878332854815
21 3945252287784
22 17767035570988
23 80202751613693
24 362855877894480
25 1645061549400870
26 7472303024027863
27 34000694603737776