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A287291 as a simple table

na(n)
01
12
20
30
424
548
664
7128
832
964
101792
113584
127168
1314336
1428672
1557344
16116224
17232448
18462848
19925696
201916928
213833856
227471104
2314942208
2427295744
2554591488
26101711872
27203423744
28268959744
29537919488
30838860800
311677721600
322164654080
334329308160

[1,2,0,0,24,48,64,128,32,64,1792,3584,7168,14336,
 28672,57344,116224,232448,462848,925696,1916928,
 3833856,7471104,14942208,27295744,54591488,
 101711872,203423744,268959744,537919488,838860800,
 1677721600,2164654080,4329308160]