# A150492 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 25
4 101
5 400
6 1669
7 7056
8 30381
9 131480
10 576861
11 2550207
12 11340229
13 50684650
14 227890405
15 1028839731
16 4660351199
17 21184482784
18 96616842171
19 441748660923
20 2024490932191
21 9300284472730
22 42813527362151
23 197436864921736
24 912076679136815
25 4220476942133370
26 19557892087758025
27 90752998607011343