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A354044 as a simple table

na(n)
00
12
25
311
423
545
686
7160
8293
9529
10945
111673
122940
135134
148917
1515415
1626539
1745525
1877842
19132716
20225685
21382877
22648165
231095121
241846968
253109850
265228261
278777315
2814716223
2924643389
3041220110
3168873848
32114964805
33191719849
34319436697
35531789785

[0,2,5,11,23,45,86,160,293,529,945,1673,2940,5134,
 8917,15415,26539,45525,77842,132716,225685,382877,
 648165,1095121,1846968,3109850,5228261,8777315,
 14716223,24643389,41220110,68873848,114964805,
 191719849,319436697,531789785]