# A246570 (b-file synthesized from sequence entry)
0 1
1 2
2 15
3 116
4 1001
5 9322
6 89363
7 881376
8 8860677
9 90407666
10 933482527
11 9731366060
12 102259648701
13 1081810639970
14 11510355762339
15 123077391281248
16 1321739147949829
17 14248409211657754
18 154118033900091139
19 1672053762899099700
20 18189628173538580233
21 198362957005290443978