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A290845 as a simple table

na(n)
11
22
34
48
514
624
736
856
978
10110
11148
12200
13254
14334
15416
16522
17644
18798
19954
201162
211372
221640
231934
242284
252636
263090
273556
284106
294694
305394
316096
326972
337850
348882
359972
3611220
3712500
3814048
3915598
4017360
4119208
4221346
4323486
4426016
4528548
4631436
4734478
4837874
4941272
5045246

[1,2,4,8,14,24,36,56,78,110,148,200,254,334,416,
 522,644,798,954,1162,1372,1640,1934,2284,2636,
 3090,3556,4106,4694,5394,6096,6972,7850,8882,9972,
 11220,12500,14048,15598,17360,19208,21346,23486,
 26016,28548,31436,34478,37874,41272,45246]