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A018227 as a simple table

na(n)
12
210
318
436
554
686
7118
8168
9218
10290
11362
12460
13558
14686
15814
16976
171138
181338
191538
201780
212022
222310
232598
242936
253274
263666
274058
284508
294958
305470
315982
326560
337138
347786
358434
369156
379878
3810678
3911478
4012360
4113242
4214210
4315178

[2,10,18,36,54,86,118,168,218,290,362,460,558,686,
 814,976,1138,1338,1538,1780,2022,2310,2598,2936,
 3274,3666,4058,4508,4958,5470,5982,6560,7138,7786,
 8434,9156,9878,10678,11478,12360,13242,14210,
 15178]