# A148757 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 7
4 28
5 80
6 343
7 1109
8 4957
9 17265
10 79054
11 289714
12 1348498
13 5126901
14 24142264
15 94383071
16 448304541
17 1791386504
18 8565590298
19 34836181497
20 167448617851
21 690969359292
22 3335440944368
23 13931963736742
24 67487310816370
25 284820772882426
26 1383712783056099
27 5891971199940838
28 28694836974139199