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A261341 as a simple table

na(n)
11
22
34
46
512
630
736
842
972
10240
11420
12600
13900
141560
151764
163600
176084
188100
1946440
201742400
214062240
2235814240

[1,2,4,6,12,30,36,42,72,240,420,600,900,1560,1764,
 3600,6084,8100,46440,1742400,4062240,35814240]