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A215764 as a simple table

na(n)
41
510
665
7420
83157
927342
10264925
112831455
1233077539
13419262987
145730379473
1584009491475
161315019717433
1721890336017248
18386143234692768
197195289865439824
20141228388872794736
212912462945497687680
2262959048637195335680
231423638554827333204800

[1,10,65,420,3157,27342,264925,2831455,33077539,
 419262987,5730379473,84009491475,1315019717433,
 21890336017248,386143234692768,7195289865439824,
 141228388872794736,2912462945497687680,
 62959048637195335680,1423638554827333204800]