# A105479 (b-file synthesized from sequence entry)
0 0
1 0
2 1
3 3
4 12
5 50
6 225
7 1092
8 5684
9 31572
10 186300
11 1163085
12 7654350
13 52928460
14 383437327
15 2902665885
16 22907918640
17 188082362120
18 1603461748491
19 14169892736484
20 129594593170210
21 1224875863061970
22 11948280552370932
23 120142063487658003
24 1243853543811461148