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A253695 as a simple table

na(n)
1680
2540
3618
4992
51632
62386
74180
86552
910696
1018236
1128352
1247594
1380548
14128248
15216740
16356714
17584026
18981652
191609356
202663806
214459244
227313942
2312171062
2420237510
2533418882
2655628622
2792193244
28152691570
29254244632

[680,540,618,992,1632,2386,4180,6552,10696,18236,
 28352,47594,80548,128248,216740,356714,584026,
 981652,1609356,2663806,4459244,7313942,12171062,
 20237510,33418882,55628622,92193244,152691570,
 254244632]