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A002573 as a simple table

na(n)
10
21
31
42
54
67
712
822
939
1070
11126
12225
13404
14725
151299
162331
174182
187501
1913458
2024145
2143316
2277715
23139430
24250152
25448808
26805222
271444677
282591958
294650342
308343380
3114969239
3226856992
3348185362
3486451602
35155106844
36278284440
37499283177
38895787396
391607174300
402883507098

[0,1,1,2,4,7,12,22,39,70,126,225,404,725,1299,
 2331,4182,7501,13458,24145,43316,77715,139430,
 250152,448808,805222,1444677,2591958,4650342,
 8343380,14969239,26856992,48185362,86451602,
 155106844,278284440,499283177,895787396,
 1607174300,2883507098]