# A001771 (b-file synthesized from sequence entry)
1 1
2 5
3 9
4 17
5 21
6 29
7 45
8 177
9 18381
10 22529
11 24557
12 26109
13 34857
14 41957
15 67421
16 70209
17 169085
18 173489
19 177977
20 363929
21 372897