# A093153 (b-file synthesized from sequence entry)
1 0
2 1
3 6
4 9
5 24
6 146
7 217
8 445
9 550
10 5959
11 14251
12 63336
13 118471
14 183456
15 951699
16 3458333
17 6284059
18 2581690
19 80743227
20 259753424