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A273229 as a simple table

na(n)
11
236
3400
43136
524336
6115600
7118336
8126736
9211600
10309136
11430336
12577600
135973136
1419713600
1530869136
1653582400
173086469136
184310710336
1971526293136
20111155560000
21112104432400
22113531259136
23137756776336
24206170483600
25245996160400
26262303768336
27308642469136

[1,36,400,3136,24336,115600,118336,126736,211600,
 309136,430336,577600,5973136,19713600,30869136,
 53582400,3086469136,4310710336,71526293136,
 111155560000,112104432400,113531259136,
 137756776336,206170483600,245996160400,
 262303768336,308642469136]