# A186948 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 21
4 73
5 233
6 717
7 2173
8 6545
9 19665
10 59029
11 177125
12 531417
13 1594297
14 4782941
15 14348877
16 43046689
17 129140129
18 387420453
19 1162261429
20 3486784361
21 10460353161
22 31381059565
23 94143178781
24 282429536433
25 847288609393