# A054625 (b-file synthesized from sequence entry)
0 1
1 6
2 21
3 76
4 336
5 1560
6 7826
7 39996
8 210126
9 1119796
10 6047412
11 32981556
12 181402676
13 1004668776
14 5597460306
15 31345666736
16 176319474366
17 995685849696
18 5642220380006
19 32071565263716
20 182807925027504
21 1044616697187576
22 5982804736593846