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A237384 as a simple table

na(n)
181
2344
3344
41472
52064
61472
76368
812408
912408
106368
1127280
1276188
13104248
1476188
1527280
16115584
17455160
18912912
19912912
20455160
21115584
22494592
232721900
247660840
2511767448
267660840
272721900
28494592
292139648
3016378560
3164312576

[81,344,344,1472,2064,1472,6368,12408,12408,6368,
 27280,76188,104248,76188,27280,115584,455160,
 912912,912912,455160,115584,494592,2721900,
 7660840,11767448,7660840,2721900,494592,2139648,
 16378560,64312576]