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A244470 as a simple table

na(n)
21
31
42
54
66
79
817
925
1040
1172
12106
13169
14305
15449
16716
171292
181902
193033
205473
218057
2212848
2323184
2434130
2554425
2698209
27144577
28230548
29416020
30612438
31976617
321762289
332594329
344137016
357465176
3610989754
3717524681
3831622993
3946553345

[1,1,2,4,6,9,17,25,40,72,106,169,305,449,716,1292,
 1902,3033,5473,8057,12848,23184,34130,54425,98209,
 144577,230548,416020,612438,976617,1762289,
 2594329,4137016,7465176,10989754,17524681,
 31622993,46553345]