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A007801 as a simple table

na(n)
11
22
32
43
56
68
78
816
922
1040
1180
12146
13240
14356
15488
16661
17870
181184
191936
203750
217976
2217628
2337528
2474828
25140480
26249444
27420392
28678432
291056600
301593512
312334928
323337410
334660246
346364080
358527984
3611258182
3714753032
3819622940
3927836440

[1,2,2,3,6,8,8,16,22,40,80,146,240,356,488,661,
 870,1184,1936,3750,7976,17628,37528,74828,140480,
 249444,420392,678432,1056600,1593512,2334928,
 3337410,4660246,6364080,8527984,11258182,14753032,
 19622940,27836440]