# A025573 (b-file synthesized from sequence entry)
1 1
2 4
3 19
4 98
5 526
6 2892
7 16159
8 91338
9 520794
10 2989688
11 17256275
12 100046894
13 582204290
14 3398722420
15 19894375665
16 116724946350
17 686260868346
18 4042058735880
19 23846068472626
20 140882925528892
21 833421929615236
22 4936088399361876
23 29266184138206509
24 173689743532678182