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A022195 as a simple table

n a(n)
12 1
13 8191
14 44731051
15 209386049731
16 914807651274739
17 3867895279362300499
18 16094312257426532376339
19 66441249531569955747981459
20 273210326382611632738979052435
21 1121258922081448861468067825426835
22 4597164868683271949171164500871212435 

[1,8191,44731051,209386049731,914807651274739,
 3867895279362300499,16094312257426532376339,
 66441249531569955747981459,
 273210326382611632738979052435,
 1121258922081448861468067825426835,
 4597164868683271949171164500871212435]

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Last modified April 24 05:49 EDT 2024. Contains 371918 sequences. (Running on oeis4.)