# A019070 (b-file synthesized from sequence entry)
3 0
4 1
5 5
6 6
7 15
8 38
9 65
10 172
11 387
12 704
13 1762
14 3996
15 8251
16 19330
17 44516
18 100594
19 240394
20 577364
21 1414354
22 3574325
23 9134924
24 23764397
25 62676552
26 166338401
27 443927873
28 1187612840
29 3177120391
30 8493106642