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A208177 as a simple table

na(n)
1257
2641
3769
41153
51409
62689
73329
83457
94481
104993
116529
127297
137681
147937
159473
169601
179857
1810369
1910753
2011393
2111777
2212161
2312289
2413313
2513441
2613697
2714081
2814593
2915233
3015361
3116001
3217921
3318049
3418433
3519073
3619457
3719841
3820353
3921121
4021377

[257,641,769,1153,1409,2689,3329,3457,4481,4993,
 6529,7297,7681,7937,9473,9601,9857,10369,10753,
 11393,11777,12161,12289,13313,13441,13697,14081,
 14593,15233,15361,16001,17921,18049,18433,19073,
 19457,19841,20353,21121,21377]