# A356409 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 28
4 203
5 1756
6 17802
7 205010
8 2644287
9 37669096
10 586855058
11 9914829508
12 180429770402
13 3516313661706
14 73029591042943
15 1609531482261375
16 37504691293842367
17 920966310015565936
18 23764054962685200642
19 642681497080268685092
20 18174504398294667649782