# A116831 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 21
5 74
6 247
7 769
8 2247
9 6238
10 16649
11 43132
12 109257
13 272073
14 668704
15 1626916
16 3926643
17 9416939
18 22468173
19 53383884
20 126404204
21 298455204
22 703023125
23 1652724170
24 3878899500
25 9090904341
26 21280894049
27 49766276975
28 116280945813