# A149328 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 12
4 39
5 142
6 545
7 2106
8 8382
9 34215
10 142643
11 600014
12 2557631
13 11028505
14 48020121
15 210769413
16 931363949
17 4143384678
18 18544445680
19 83436432216
20 377186393627
21 1712438625809
22 7806272131532
23 35718243832372
24 163985930358341
25 755228559001683
26 3488271916047151
27 16155889488916942