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A298648 as a simple table

na(n)
31
44
530
612
798
828
9270
1060
11682
12124
131638
14252
153810
16508
178670
181020
1919418
202044
2142966
224092
2394162
248188
25204750
2616380
27442314
2832764
29950214
3065532
312031554
32131068
334325310
34262140
359174970
36524284
3719398582
381048572
3940894386
402097148
4185983150

[1,4,30,12,98,28,270,60,682,124,1638,252,3810,508,
 8670,1020,19418,2044,42966,4092,94162,8188,204750,
 16380,442314,32764,950214,65532,2031554,131068,
 4325310,262140,9174970,524284,19398582,1048572,
 40894386,2097148,85983150]