# A149939 (b-file synthesized from sequence entry)
0 1
1 2
2 5
3 15
4 49
5 170
6 619
7 2302
8 8723
9 33708
10 132118
11 524213
12 2099108
13 8469819
14 34428721
15 140827947
16 579195024
17 2393319428
18 9930326669
19 41361965397
20 172876964154
21 724796212419
22 3047269940521
23 12844242301182
24 54266727185459
25 229774872053471
26 974848465781183
27 4143560333822301