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A206803 as a simple table

na(n)
22
38
426
552
698
7156
8242
9376
10528
11740
12996
131276
141608
152024
162530
173068
183708
194420
205170
216040
226994
238080
249350
2510716
2612132
2713652
2815226
2916912
3019004
3121216
3223614
3326076
3428868
3531728
3634798
3738084
3841518
3945180
4049076

[2,8,26,52,98,156,242,376,528,740,996,1276,1608,
 2024,2530,3068,3708,4420,5170,6040,6994,8080,9350,
 10716,12132,13652,15226,16912,19004,21216,23614,
 26076,28868,31728,34798,38084,41518,45180,49076]