# A026294 (b-file synthesized from sequence entry)
0 1
1 3
2 27
3 266
4 2743
5 29068
6 313633
7 3427358
8 37810605
9 420193609
10 4696967294
11 52753182426
12 594829939672
13 6729488070844
14 76349568744149
15 868359048628146
16 9897485221142239
17 113024337104850132
18 1292850211089736299
19 14810711124377556034
20 169898355365054443380