# A203067 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 15
5 48
6 161
7 557
8 1975
9 7140
10 26223
11 97567
12 366979
13 1393104
14 5330500
15 20537289
16 79605148
17 310211668
18 1214618931
19 4776089725
20 18852665026
21 74676503735
22 296736116911
23 1182534483734
24 4725095364115
25 18926460148937
26 75981766859715
27 305674059089303
28 1232118979522167