# A378403 (b-file synthesized from sequence entry)
0 1
1 2
2 10
3 53
4 290
5 1632
6 9349
7 54231
8 317538
9 1872800
10 11109520
11 66213215
12 396181229
13 2378362248
14 14318234311
15 86409741438
16 522592913026
17 3166515425796
18 19218755044816
19 116820035092706
20 711037336745440
21 4333057549362840
22 26434747722608191
23 161433098212966732