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A337326 as a simple table

na(n)
11
23
36
415
545
630
742
860
9132
10264
11270
12378
13594
14210
15462
16780
171050
18420
19924
20660
212100
22840
233060
241848
253300
261890
272970
282520
299702
302310
315544
323780
3311592
348316
3518216
365460
375940
387980
3916830
407140
4111550
424620
4321252
4410920
4523760
4622440
4749500

[1,3,6,15,45,30,42,60,132,264,270,378,594,210,462,
 780,1050,420,924,660,2100,840,3060,1848,3300,1890,
 2970,2520,9702,2310,5544,3780,11592,8316,18216,
 5460,5940,7980,16830,7140,11550,4620,21252,10920,
 23760,22440,49500]