# A094943 (b-file synthesized from sequence entry)
1 1
2 13
3 72
4 429
5 2601
6 15534
7 93339
8 559845
9 3359232
10 20155473
11 120932109
12 725594598
13 4353563943
14 26121388761
15 156728328192
16 940369966965
17 5642219821473
18 33853318876350
19 203119913356515
20 1218719480001309