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A264959 as a simple table

na(n)
01
19
227
380
4216
5448
61296
72816
86400
913312
1030720
1162208
12139264
13311296
14688128
151474560
162985984
176029312
1812845056
1930408704
2065011712
21131072000
22264241152
23553648128
241132462080
252293235712
264697620480
279932111872
2820132659200
2941875931136
3088046829568

[1,9,27,80,216,448,1296,2816,6400,13312,30720,
 62208,139264,311296,688128,1474560,2985984,
 6029312,12845056,30408704,65011712,131072000,
 264241152,553648128,1132462080,2293235712,
 4697620480,9932111872,20132659200,41875931136,
 88046829568]