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A316697 as a simple table

na(n)
11
21
32
45
510
624
749
8112
9241
10548
111218
122839
136547
1415572
1537179
1690555
17222065
18552576
191384820
203506475
218936121
2222941280

[1,1,2,5,10,24,49,112,241,548,1218,2839,6547,
 15572,37179,90555,222065,552576,1384820,3506475,
 8936121,22941280]