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A067499 as a simple table

na(n)
11
22
34
48
5512
668719476736
738685626227668133590597632
895780971304118053647396689196894323976171195136475136
925108406941546723055343157692830665664409421777856138051584
101606938044258990275541962092341162602522202993782792835301376

[1,2,4,8,512,68719476736,
 38685626227668133590597632,
 95780971304118053647396689196894323976171195136475\
 136,
 25108406941546723055343157692830665664409421777856\
 138051584,
 16069380442589902755419620923411626025222029937827\
 92835301376]