# A007834 (b-file synthesized from sequence entry)
1 1
2 0
3 1
4 1
5 16
6 76
7 1016
8 10284
9 157340
10 2411756
11 44953712
12 899824256
13 20283419872
14 495216726096
15 13202082981712
16 378896535199888
17 11690436112988224
18 385173160930360192
19 13509981115738946816