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A091940 as a simple table

na(n)
10
22
318
484
5260
6630
71302
82408
94104
106570
1110010
1214652
1320748
1428574
1538430
1650640
1765552
1883538
19104994
20130340
21160020
22194502
23234278
24279864
25331800
26390650
27457002
28531468
29614684
30707310
31810030
32923552
331048608
341185954
351336370
361500660

[0,2,18,84,260,630,1302,2408,4104,6570,10010,
 14652,20748,28574,38430,50640,65552,83538,104994,
 130340,160020,194502,234278,279864,331800,390650,
 457002,531468,614684,707310,810030,923552,1048608,
 1185954,1336370,1500660]