# A260092 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 2
4 9
5 44
6 265
7 1854
8 14833
9 133496
10 440192
11 1445100
12 4728000
13 15405008
14 49955280
15 162442816
16 530284304
17 1738077424
18 5714461760
19 18795784436
20 61868602624
21 203858323008
22 672535917712
23 2221505855492
24 7345985276816
25 24314075406208
26 80542683435168