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A002412 as a simple table

na(n)
00
11
27
322
450
595
6161
7252
8372
9525
10715
11946
121222
131547
141925
152360
162856
173417
184047
194750
205530
216391
227337
238372
249500
2510725
2612051
2713482
2815022
2916675
3018445
3120336
3222352
3324497
3426775
3529190
3631746
3734447
3837297
3940300

[0,1,7,22,50,95,161,252,372,525,715,946,1222,1547,
 1925,2360,2856,3417,4047,4750,5530,6391,7337,8372,
 9500,10725,12051,13482,15022,16675,18445,20336,
 22352,24497,26775,29190,31746,34447,37297,40300]