# A132837 (b-file synthesized from sequence entry)
0 1
1 4
2 14
3 56
4 221
5 884
6 3534
7 14136
8 56542
9 226168
10 904672
11 3618688
12 14474751
13 57899004
14 231596014
15 926384056
16 3705536222
17 14822144888
18 59288579552
19 237154318208
20 948617272832
21 3794469091328
22 15177876365312
23 60711505461248