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A367776 as a simple table

na(n)
00
16
2240
312600
4846720
569854400
66849722880
7779155977600
8100919250432000
914668613050291200
102364758225077248000
11418798681661180620800
1280831074222717378560000
1316887920864389166592000000
143797443866983262444748800000
15914438045469094536918528000000

[0,6,240,12600,846720,69854400,6849722880,
 779155977600,100919250432000,14668613050291200,
 2364758225077248000,418798681661180620800,
 80831074222717378560000,
 16887920864389166592000000,
 3797443866983262444748800000,
 914438045469094536918528000000]