# A019248 (b-file synthesized from sequence entry)
3 0
4 0
5 3
6 6
7 7
8 21
9 44
10 107
11 274
12 655
13 1484
14 3919
15 10003
16 24765
17 62528
18 161536
19 413954
20 1065515
21 2759833
22 7192471
23 18790104
24 49343301
25 130153728
26 344564793
27 915441196
28 2441445940
29 6530187540
30 17514820829
31 47100909261