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A242484 as a simple table

na(n)
11
22
324
44320
54680
626208
78910720
817428320
920427264
1091963648
11197064960
128583644160
1310200236032
1421857648640
1557575890944
1657629644800
17206166804480
1817116004505600
191416963251404800
2015338300494970880

[1,2,24,4320,4680,26208,8910720,17428320,20427264,
 91963648,197064960,8583644160,10200236032,
 21857648640,57575890944,57629644800,206166804480,
 17116004505600,1416963251404800,15338300494970880]