# A147680 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 1
4 2
5 2
6 2
7 1
8 2
9 2
10 3
11 3
12 4
13 4
14 4
15 4
16 4
17 4
18 3
19 3
20 4
21 5