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A051573 as a simple table

na(n)
01
11
21
32
43
58
616
741
898
9250
10631
111646
124285
1311338
1430135
1580791
16217673
17590010
181606188
194392219
2012055393
2133206321
2291752211
23254261363
24706465999
251967743066
265493195530
2715367129299
2843073007846
29120949992543
30340206026166
31958444631917

[1,1,1,2,3,8,16,41,98,250,631,1646,4285,11338,
 30135,80791,217673,590010,1606188,4392219,
 12055393,33206321,91752211,254261363,706465999,
 1967743066,5493195530,15367129299,43073007846,
 120949992543,340206026166,958444631917]