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A268691 as a simple table

na(n)
01
12
22
34
48
512
624
748
896
9180
10360
11720
121440
132820
145640
1511280
1622560
1744760
1889520
19179040
20358080
21713760
221427520
232855040
245710080
2511403060
2622806120
2745612240
2891224480
29182321460
30364642920
31729285840
321458571680
332916160800
345832321600

[1,2,2,4,8,12,24,48,96,180,360,720,1440,2820,5640,
 11280,22560,44760,89520,179040,358080,713760,
 1427520,2855040,5710080,11403060,22806120,
 45612240,91224480,182321460,364642920,729285840,
 1458571680,2916160800,5832321600]