# A150674 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 26
4 108
5 416
6 1772
7 7408
8 32280
9 140864
10 626416
11 2802480
12 12671872
13 57632544
14 264001184
15 1215240512
16 5623292864
17 26126758656
18 121874499712
19 570451075712
20 2678564077440
21 12613073707520
22 59549260962304
23 281818028251392
24 1336656436592128
25 6352603760399872
26 30248439877778944
27 144282137961027584