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A226394 as a simple table

na(n)
12
220
368
4146
5258
6756
71012
81866
93762
105020
116854
1213706
1315514
1422540
1538982
1643620
1754834
1896164
1998406
20128232
21207814
22213600
23253828
24414128
25402352
26495006
27764912
28744280
29859550
301342098
311253162
321483672
332231178
342095910

[2,20,68,146,258,756,1012,1866,3762,5020,6854,
 13706,15514,22540,38982,43620,54834,96164,98406,
 128232,207814,213600,253828,414128,402352,495006,
 764912,744280,859550,1342098,1253162,1483672,
 2231178,2095910]