# A027819 (b-file synthesized from sequence entry)
1 7
2 84
3 504
4 2100
5 6930
6 19404
7 48048
8 108108
9 225225
10 440440
11 816816
12 1447992
13 2469012
14 4069800
15 6511680
16 10147368
17 15444891
18 23015916
19 33649000
20 48348300
21 68378310
22 95315220
23 131105520
24 178132500
25 239291325
26 318073392
27 418660704
28 546031024
29 706074600
30 905723280