# A148499 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 5
4 15
5 33
6 101
7 271
8 809
9 2383
10 7153
11 22267
12 69181
13 219153
14 699165
15 2238795
16 7310623
17 23850477
18 78679013
19 260481641
20 865028627
21 2903853937
22 9751449631
23 32965825969
24 111723673671
25 379469858211
26 1297894125933
27 4441643181859
28 15268736087795
29 52585238553761
30 181396356158371
31 628823881778207