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A053643 as a simple table

na(n)
10
20
30
40
50
61
71
84
910
1021
1142
1277
13132
14215
15334
16501
17728
181032
191428
201938
212584
223392
234389
245609
257084
268855
2710964
2813455
2916380
3019793
3123751
3228319
3333563
3439556
3546376
3654106
3762832
3872650
3983657
4095960
41109668
42124900

[0,0,0,0,0,1,1,4,10,21,42,77,132,215,334,501,728,
 1032,1428,1938,2584,3392,4389,5609,7084,8855,
 10964,13455,16380,19793,23751,28319,33563,39556,
 46376,54106,62832,72650,83657,95960,109668,124900]