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A221260 as a simple table

na(n)
10
21024
31560
444903401
54684821704
64919350997521
71286684357154700
8711683286892712289
9249788326721013262468
10113635514869793774013025
1144202928096066452637659216

[0,1024,1560,44903401,4684821704,4919350997521,
 1286684357154700,711683286892712289,
 249788326721013262468,113635514869793774013025,
 44202928096066452637659216]