# A026900 (b-file synthesized from sequence entry)
2 1
3 8
4 47
5 248
6 1251
7 6194
8 30496
9 150348
10 745086
11 3719388
12 18721063
13 95045190
14 486669349
15 2512426480
16 13070589618
17 68484870582
18 361191120212
19 1916337714194
20 10222616034264
21 54800827268454
22 295084855980404
23 1595368824989782