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A223528 as a simple table

na(n)
11
21
34
45
540
616
745
8540
9432
1064
11585
129360
1311232
143328
15256
169945
17198900
18318240
19141440
2021760
211024
22208845
235012280
2410024560
255940480
261370880
27129024
284096
295221125
30146191500
31350859600
32259896000
3379968000
3411289600
35716800
3616384
37151412625

[1,1,4,5,40,16,45,540,432,64,585,9360,11232,3328,
 256,9945,198900,318240,141440,21760,1024,208845,
 5012280,10024560,5940480,1370880,129024,4096,
 5221125,146191500,350859600,259896000,79968000,
 11289600,716800,16384,151412625]