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A368430 as a simple table

na(n)
01
12
24
38
412
520
632
748
876
9116
10176
11272
12412
13628
14960
151456
162220
173380
185136
197824
2011900
2118100
2227552
2341904
2463756
2597012
26147568
27224528
28341596
29519668
30790656
311202864
321829996
332784180
344235728
356444176
369804092
3714915636
3822692448
3934523824

[1,2,4,8,12,20,32,48,76,116,176,272,412,628,960,
 1456,2220,3380,5136,7824,11900,18100,27552,41904,
 63756,97012,147568,224528,341596,519668,790656,
 1202864,1829996,2784180,4235728,6444176,9804092,
 14915636,22692448,34523824]