# A228860 (b-file synthesized from sequence entry)
1 1
2 1
3 0
4 1
5 2
6 1
7 40
8 36
9 144
10 78
11 126336
12 176
13 14035200
14 69480
15 779436
16 25401600
17 465334732800
18 1700352
19 127064889262080
20 1888106496
21 1479065243520
22 1774752094080
23 18353630943019008000
24 144127475712
25 116009818818379776000
26 30959322906758400
27 373881853408444416000