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A311657 as a simple table

na(n)
01
14
28
312
420
524
630
732
838
944
1048
1148
1256
1364
1468
1574
1670
1782
1888
1992
2086
21100
22108
23112
24118
25108
26126
27132
28136
29124
30144
31152
32156
33162
34146
35170
36176
37180
38162
39188
40196
41200
42206
43184
44214
45220
46224
47200
48232
49240

[1,4,8,12,20,24,30,32,38,44,48,48,56,64,68,74,70,
 82,88,92,86,100,108,112,118,108,126,132,136,124,
 144,152,156,162,146,170,176,180,162,188,196,200,
 206,184,214,220,224,200,232,240]