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A176677 as a simple table

na(n)
01
11
21
32
45
514
641
7123
8375
91158
103615
1111393
1236209
13115940
14373709
151211740
163949969
1712937612
1842558745
19140547051
20465799527
211548766044
225164917003
2317271369744
2457900615135
25194558333460
26655168354935
272210681734671

[1,1,1,2,5,14,41,123,375,1158,3615,11393,36209,
 115940,373709,1211740,3949969,12937612,42558745,
 140547051,465799527,1548766044,5164917003,
 17271369744,57900615135,194558333460,655168354935,
 2210681734671]