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A127226 as a simple table

na(n)
02
12
216
344
4184
5632
62368
78528
831264
9113696
10414976
111512128
125514112
1320100992
1473286656
15267179264
16974078464
173551232512
1812946935808
1947201266688
20172084148224
21627375896576
222287256682496
238338768744448
2430401077583872
25110834767634432
26404076000772096

[2,2,16,44,184,632,2368,8528,31264,113696,414976,
 1512128,5514112,20100992,73286656,267179264,
 974078464,3551232512,12946935808,47201266688,
 172084148224,627375896576,2287256682496,
 8338768744448,30401077583872,110834767634432,
 404076000772096]