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A183458 as a simple table

na(n)
11
21
32
43
54
621
740
860
9344
10706
111115
125961
1312955
1421430
15105338
16240405
17415187
181882817
194477153
208046028
2133915664
2283437560
23155547810
24614501063
251554456963
262997410782
2711186285623
2828942766933
2957570735736
30204441596636

[1,1,2,3,4,21,40,60,344,706,1115,5961,12955,21430,
 105338,240405,415187,1882817,4477153,8046028,
 33915664,83437560,155547810,614501063,1554456963,
 2997410782,11186285623,28942766933,57570735736,
 204441596636]