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A038751 as a simple table

na(n)
00
11
21
30
41
51
62
73
86
99
1018
1130
1260
13105
14210
15381
16765
171425
182868
195454
2011004
2121210
2242930
2383673
24169851
25333843
26679602
271345476
282745636
295467275
3011182365
3122379895
3245866418
3392180781
34189275955
35381831396
36785328636

[0,1,1,0,1,1,2,3,6,9,18,30,60,105,210,381,765,
 1425,2868,5454,11004,21210,42930,83673,169851,
 333843,679602,1345476,2745636,5467275,11182365,
 22379895,45866418,92180781,189275955,381831396,
 785328636]