# A036292 (b-file synthesized from sequence entry)
0 0
1 6
2 72
3 648
4 5184
5 38880
6 279936
7 1959552
8 13436928
9 90699264
10 604661760
11 3990767616
12 26121388032
13 169789022208
14 1097098297344
15 7052774768640
16 45137758519296
17 287753210560512
18 1828079220031488
19 11577835060199424
20 73123168801259520
21 460675963447934976