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A084518 as a simple table

na(n)
11
22
35
418
565
6238
7877
83234
911929
1044006
11162341
12598890
132209361
148150542
1530068125
16110924178
17409209865
181509614198
195569110677
2020544980154
2175792390209
22279605352286
231031490797581
243805267877730
2514037995932921

[1,2,5,18,65,238,877,3234,11929,44006,162341,
 598890,2209361,8150542,30068125,110924178,
 409209865,1509614198,5569110677,20544980154,
 75792390209,279605352286,1031490797581,
 3805267877730,14037995932921]