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A180965 as a simple table

na(n)
01
12
26
313
429
568
6156
7357
8821
91886
104330
119945
1222841
1352456
14120472
15276681
16635433
171459354
183351598
197697381
2017678037
2140599916
2293242996
23214144685
24491811165
251129508406
262594063186
275957604017
2813682413681
2931423445328
3072168035504
31165743294353

[1,2,6,13,29,68,156,357,821,1886,4330,9945,22841,
 52456,120472,276681,635433,1459354,3351598,
 7697381,17678037,40599916,93242996,214144685,
 491811165,1129508406,2594063186,5957604017,
 13682413681,31423445328,72168035504,165743294353]