# A233532 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 8
5 38
6 268
7 2578
8 31672
9 475120
10 8427696
11 172607454
12 4008441848
13 104061288740
14 2985810416824
15 93812980749076
16 3202899902480872
17 118054380417848192
18 4671653916923940952
19 197528462484409468792
20 8886812830338447522120
21 423862241146246310158108
22 21362480654281867734050272