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A331987 as a simple table

na(n)
00
15
223
362
4130
5235
6385
7588
8852
91185
101595
112090
122678
133367
144165
155080
166120
177293
188607
1910070
2011690
2113475
2215433
2317572
2419900
2522425
2625155
2728098
2831262
2934655
3038285
3142160
3246288
3350677
3455335
3560270
3665490
3771003
3876817
3982940
4089380
4196145

[0,5,23,62,130,235,385,588,852,1185,1595,2090,
 2678,3367,4165,5080,6120,7293,8607,10070,11690,
 13475,15433,17572,19900,22425,25155,28098,31262,
 34655,38285,42160,46288,50677,55335,60270,65490,
 71003,76817,82940,89380,96145]