# A066912 (b-file synthesized from sequence entry)
0 0
1 1
2 26
3 302
4 2416
5 15619
6 88234
7 455192
8 2203488
9 10187685
10 45533450
11 198410786
12 848090912
13 3572085255
14 14875399450
15 61403313100
16 251732291184
17 1026509354985
18 4168403181210
19 16871482830550
20 68111623139600