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A276704 as a simple table

na(n)
13
25
36
421
545
677
7117
8165
9221
10285
11357
12437
13525
14621
15725
16837
17957
181085
191221
201365
211517
221677
231845
242021
252205
262397
272597
282805
293021
303245
313477
323717
333965
344221
354485
364757
375037
385325
395621
405925
416237
426557
436885
447221
457565
467917
478277

[3,5,6,21,45,77,117,165,221,285,357,437,525,621,
 725,837,957,1085,1221,1365,1517,1677,1845,2021,
 2205,2397,2597,2805,3021,3245,3477,3717,3965,4221,
 4485,4757,5037,5325,5621,5925,6237,6557,6885,7221,
 7565,7917,8277]