# A372264 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 15
5 104
6 695
7 5004
8 40271
9 362816
10 3628719
11 39916700
12 479001479
13 6227020656
14 87178291031
15 1307674367804
16 20922789887775
17 355687428095744
18 6402373705727711
19 121645100408831676
20 2432902008176639639
21 51090942171709439600
22 1124000727777607679559
23 25852016738884976639516