# A053190 (b-file synthesized from sequence entry)
1 0
2 1
3 2
4 1
5 3
6 7
7 31
8 69
9 31
10 100
11 231
12 562
13 3041
14 12726
15 28493
16 12726
17 41219
18 95164
19 612203
20 1319570
21 8529623
22 52497308
23 218518855
24 489535018
25 218518855
26 708053873
27 1634626601
28 7246560277
29 37867427986
30 82981416249
31 701718757978