# A289157 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 9
4 37
5 146
6 772
7 4449
8 30307
9 228605
10 1921464
11 17652327
12 176162548
13 1893738334
14 21806975279
15 267636988052
16 3486370839295
17 48029272657002
18 697542580286159
19 10649954607360119
20 170508064788069346
21 2856122791685125616
22 49951625299057923405