# A150644 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 27
4 118
5 522
6 2420
7 11289
8 53793
9 257362
10 1244961
11 6039808
12 29485738
13 144258235
14 708480043
15 3485227388
16 17187200327
17 84865641756
18 419743432518
19 2078100373296
20 10300559457528
21 51096787670550
22 253687974620399
23 1260301870804674
24 6265125287549723
25 31160154012544656
26 155054753225871295