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A317752 as a simple table

na(n)
10
21
38
449
5305
61984
713686
8100124
9776885
106386677
1155532358
12509549386
134921352952
1449899820572
15529807799836
165876162077537
1767928460444139
18816764249684450
1910195486840926032
20131896905499007474
211765587483656124106
2224419774819813602870

[0,1,8,49,305,1984,13686,100124,776885,6386677,
 55532358,509549386,4921352952,49899820572,
 529807799836,5876162077537,67928460444139,
 816764249684450,10195486840926032,
 131896905499007474,1765587483656124106,
 24419774819813602870]