# A007046 (b-file synthesized from sequence entry)
3 1
4 3
5 9
6 25
7 70
8 194
9 537
10 1485
11 4104
12 11338
13 31318
14 86498
15 238885
16 659713
17 1821843
18 5031071
19 13893316
20 38366206
21 105947374
22 292570493
23 807923428
24 2231050832
25 6160961041
26 17013250192
27 46981405457
28 129737238488
29 358264064448
30 989331456469