# A211966 (b-file synthesized from sequence entry)
1 2
2 6
3 20
4 74
5 286
6 1124
7 4460
8 17768
9 70930
10 283440
11 1133200
12 4531686
13 18124522
14 72493652
15 289965744
16 1159845258
17 4639345612
18 18557311624
19 74229104872
20 296916136278
21 1187663978718
22 4750654782144
23 19002616863186
24 76010462922018