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A216324 as a simple table

na(n)
13
221
321
415
5105
633
751
857
9195
10195
11273
12465
13205
14285
15987
16105
171155
18897
19651
201365
21105
22357
231185
24615
25715
26665
272345
284395
292037
301155
313003
32897
331239
343255
352667
368463
375691
387755
392415
404305
4111985
424123

[3,21,21,15,105,33,51,57,195,195,273,465,205,285,
 987,105,1155,897,651,1365,105,357,1185,615,715,
 665,2345,4395,2037,1155,3003,897,1239,3255,2667,
 8463,5691,7755,2415,4305,11985,4123]