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A035523 as a simple table

na(n)
01
12
24
38
416
532
696
7160
8320
9960
101600
112880
123520
136080
1411200
1521440
1662400
1786080
18169280
19338560
20648248
211902840
223281200
236404832
246510784
2512950936
2625744192
2751882584
28156278688
29261609208
30506142216
31531792640
321008314456
332014504120

[1,2,4,8,16,32,96,160,320,960,1600,2880,3520,6080,
 11200,21440,62400,86080,169280,338560,648248,
 1902840,3281200,6404832,6510784,12950936,25744192,
 51882584,156278688,261609208,506142216,531792640,
 1008314456,2014504120]