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A226640 as a simple table

na(n)
16
212
318
436
566
648
7132
896
9264
10288
11528
121026
131032
14384
152064
161152
172112
188196
191536
204224
2116386
2232772
238448
2432784
2565538
269216
2716896
2865568
29131076
3012288
3118432
3266048
33262176
34131328
35262272
36132096
37524352
381048578
391048584

[6,12,18,36,66,48,132,96,264,288,528,1026,1032,
 384,2064,1152,2112,8196,1536,4224,16386,32772,
 8448,32784,65538,9216,16896,65568,131076,12288,
 18432,66048,262176,131328,262272,132096,524352,
 1048578,1048584]