# A003126 (b-file synthesized from sequence entry)
1 1
2 4
3 15
4 58
5 226
6 882
7 3457
8 13606
9 53683
10 212090
11 838484
12 3319596
13 13159676
14 52220801
15 207374051
16 823906473
17 3274464556
18 13019414133
19 51790661881
20 206112818880
21 820583696869
22 3267935428368
23 13017497498243
24 51863262314021