# A186639 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 5
4 4
5 84
6 296
7 2680
8 19776
9 182336
10 1812352
11 19963008
12 239490560
13 3113532928
14 43589096448
15 653837290496
16 10461394714624
17 177843714539520
18 3201186851815424
19 60822550206644224
20 1216451004083601408
21 25545471085864681472
22 562000363888782868480
23 12926008369442532360192
24 310224200866619627405312
25 7755605021665493184937984