# A107376 (b-file synthesized from sequence entry)
0 0
1 1
2 1
3 2
4 7
5 41
6 272
7 1853
8 12677
9 86794
10 594315
11 4069613
12 27867056
13 190822393
14 1306675145
15 8947587010
16 61269485263
17 419548848433
18 2872902154816
19 19672481099861
20 134709256274733
21 922434929990986
22 6316464240083059