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A299289 as a simple table

na(n)
01
18
228
360
4106
5164
6236
7320
8418
9528
10652
11788
12938
131100
141276
151464
161666
171880
182108
192348
202602
212868
223148
233440
243746
254064
264396
274740
285098
295468
305852
316248
326658
337080
347516
357964
368426
378900
389388
399888
4010402
4110928

[1,8,28,60,106,164,236,320,418,528,652,788,938,
 1100,1276,1464,1666,1880,2108,2348,2602,2868,3148,
 3440,3746,4064,4396,4740,5098,5468,5852,6248,6658,
 7080,7516,7964,8426,8900,9388,9888,10402,10928]