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A005198 as a simple table

na(n)
10
21
31
43
55
613
727
868
9160
10404
111010
122604
136726
1417661
1546628
16124287
17333162
18898921
192437254
206640537
2118166568
2249890419
23137478389
24380031868
251053517588
262928246650
278158727139
2822782938271
2963752461474
30178740014515
31502026565792
321412409894224

[0,1,1,3,5,13,27,68,160,404,1010,2604,6726,17661,
 46628,124287,333162,898921,2437254,6640537,
 18166568,49890419,137478389,380031868,1053517588,
 2928246650,8158727139,22782938271,63752461474,
 178740014515,502026565792,1412409894224]