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A038750 as a simple table

na(n)
00
11
21
31
42
52
65
77
817
929
1066
11126
12284
13568
141281
152662
166017
1712756
1828992
1962621
20142801
21312129
22714760
231578706
243626762
258074580
2618606900
2741716797
2896374235
29217271226
30503159109
311139963936
322645397326
336018491701

[0,1,1,1,2,2,5,7,17,29,66,126,284,568,1281,2662,
 6017,12756,28992,62621,142801,312129,714760,
 1578706,3626762,8074580,18606900,41716797,
 96374235,217271226,503159109,1139963936,
 2645397326,6018491701]