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A270142 as a simple table

na(n)
14
216
364
4256
51024
64096
716384
865536
9262144
104
1124
12144
13864
145184
1531104
16186624
171119744
186718464
1940310784
2016
2196
22576
233456
2420736
25124416
26746496
274478976
2826873856
29161243136
3064
31384
322304
3313824
3482944
35497664
362985984
3717915904
38107495424

[4,16,64,256,1024,4096,16384,65536,262144,4,24,
 144,864,5184,31104,186624,1119744,6718464,
 40310784,16,96,576,3456,20736,124416,746496,
 4478976,26873856,161243136,64,384,2304,13824,
 82944,497664,2985984,17915904,107495424]