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A368257 as a simple table

na(n)
11
26
34
416
544
66
772
8544
9366
1023
11256
128384
1321856
144244
1552
161056
17131584
181399512
191050128
2052740
21194
224096
232100224
2489478656
25268472384
2653687104
27701124
28586
2916512
3033562624
315726711136
3268719870208
3354975896016
342863399264
359591666
362131

[1,6,4,16,44,6,72,544,366,23,256,8384,21856,4244,
 52,1056,131584,1399512,1050128,52740,194,4096,
 2100224,89478656,268472384,53687104,701124,586,
 16512,33562624,5726711136,68719870208,54975896016,
 2863399264,9591666,2131]