# A148400 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 5
4 16
5 54
6 197
7 746
8 2876
9 11390
10 45977
11 188066
12 780848
13 3280312
14 13909971
15 59533135
16 256759223
17 1114687983
18 4869337791
19 21385124366
20 94368601473
21 418274225010
22 1861248654027
23 8311998648668
24 37242997500962
25 167375917694208
26 754308894036624
27 3408201201827853
28 15436011804303550