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A217863 as a simple table

na(n)
11
21
32
44
516
616
796
8192
9576
10576
115760
125760
1369120
1469120
1569120
16138240
172211840
182211840
1939813120
2039813120
2139813120
2239813120
23875888640
24875888640
254379443200
264379443200
2713138329600
2813138329600
29367873228800
30367873228800
3111036196864000

[1,1,2,4,16,16,96,192,576,576,5760,5760,69120,
 69120,69120,138240,2211840,2211840,39813120,
 39813120,39813120,39813120,875888640,875888640,
 4379443200,4379443200,13138329600,13138329600,
 367873228800,367873228800,11036196864000]