# A366546 (b-file synthesized from sequence entry)
0 0
1 0
2 0
3 6
4 24
5 60
6 480
7 5250
8 40656
9 363384
10 4839120
11 65198430
12 859543080
13 13311494196
14 233478687624
15 4190929145130
16 79746180437280
17 1667320408619760
18 36965002127643936
19 854734007793179574
20 20962277675893792440
21 544839141515795731500