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A179997 as a simple table

na(n)
12
24
36
49
515
625
748
891
9169
10336
11669
121335
132665
145317
1510573
1621037
1742072
1884141
19168279
20336553
21673099
221345639
232691276
245382549
2510765095
2621528959
2743057916
2886115821
29172231631
30344463251
31688926491
321377847349
332755694696
345511375473
3511022750944

[2,4,6,9,15,25,48,91,169,336,669,1335,2665,5317,
 10573,21037,42072,84141,168279,336553,673099,
 1345639,2691276,5382549,10765095,21528959,
 43057916,86115821,172231631,344463251,688926491,
 1377847349,2755694696,5511375473,11022750944]