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A244521 as a simple table

na(n)
21
32
43
56
611
722
845
990
10184
11370
12751
131516
143053
156172
1612405
1725042
1850323
19101424
20203880
21410296
22824871
231658338
243333405
256696814
2613457112
2727021758
2854278993
29108952646
30218765704
31439001338
32881134467

[1,2,3,6,11,22,45,90,184,370,751,1516,3053,6172,
 12405,25042,50323,101424,203880,410296,824871,
 1658338,3333405,6696814,13457112,27021758,
 54278993,108952646,218765704,439001338,881134467]