# A278048 (b-file synthesized from sequence entry)
1 2
2 3
3 30
4 21
5 252
6 396
7 6435
8 858
9 2042040
10 3527160
11 5290740
12 9360540
13 1029659400
14 617795640
15 116454478140
16 1061790830100
17 283144221360
18 10644519600
19 14060345939640
20 14060345939640
21 2960272834318800
22 130015019445168
23 4653946718775900
24 43747099156493460