# A349948 (b-file synthesized from sequence entry)
1 0
2 10
3 48
4 190
5 720
6 2698
7 10080
8 37630
9 140448
10 524170
11 1956240
12 7300798
13 27246960
14 101687050
15 379501248
16 1416317950
17 5285770560
18 19726764298
19 73621286640
20 274758382270
21 1025412242448
22 3826890587530
23 14282150107680
24 53301709843198
25 198924689265120