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A118376 as a simple table

na(n)
11
22
36
424
5112
6568
73032
816768
995200
10551616
113248704
1219389824
13117021824
14712934784
154378663296
1627081760768
17168530142720
181054464293888
196629484729344
2041860283723776
21265346078982144
221687918305128448
2310771600724946944
2468941213290561536

[1,2,6,24,112,568,3032,16768,95200,551616,3248704,
 19389824,117021824,712934784,4378663296,
 27081760768,168530142720,1054464293888,
 6629484729344,41860283723776,265346078982144,
 1687918305128448,10771600724946944,
 68941213290561536]