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A002023 as a simple table

na(n)
06
124
296
3384
41536
56144
624576
798304
8393216
91572864
106291456
1125165824
12100663296
13402653184
141610612736
156442450944
1625769803776
17103079215104
18412316860416
191649267441664
206597069766656
2126388279066624
22105553116266496
23422212465065984

[6,24,96,384,1536,6144,24576,98304,393216,1572864,
 6291456,25165824,100663296,402653184,1610612736,
 6442450944,25769803776,103079215104,412316860416,
 1649267441664,6597069766656,26388279066624,
 105553116266496,422212465065984]