# A372138 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 24
4 149
5 945
6 6464
7 45360
8 328661
9 2426971
10 18244053
11 138988092
12 1071271988
13 8336754044
14 65421283160
15 517081111568
16 4112772482949
17 32894217211791
18 264391091936095
19 2134466592084000
20 17300375657257629
21 140728012021470193
22 1148477345709237844