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A231897 as a simple table

na(n)
00
11
23
35
413
511
621
739
845
975
10155
11217
12331
13181
14627
15923
161241
172505
183915
195221
206475
2111309
2215595
2319637
2431595
2544491
2669451
27113447
28185269
29244661
30357081
31453677
321015143
33908091
34980853
352960011
364568757
372965685
385931189
3911862197
4020437147

[0,1,3,5,13,11,21,39,45,75,155,217,331,181,627,
 923,1241,2505,3915,5221,6475,11309,15595,19637,
 31595,44491,69451,113447,185269,244661,357081,
 453677,1015143,908091,980853,2960011,4568757,
 2965685,5931189,11862197,20437147]