# A149900 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 14
4 47
5 159
6 570
7 2073
8 7937
9 30410
10 119925
11 474811
12 1924495
13 7807044
14 32203887
15 133069917
16 557221720
17 2335779862
18 9894442363
19 41963425550
20 179491780393
21 768567676097
22 3314106748325
23 14305762765069
24 62114424112373
25 269972686309324
26 1179211837551930
27 5155802812760365