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A250063 as a simple table

n a(n)
1 21
2 7054
3 348066
4 6415638
5 65419155
6 449532868
7 2330996068
8 9790907652
9 34925259201
10 109359675810
11 307898807590
12 793597679082
13 1898570817663
14 4261710821064
15 9053571280840
16 18330419662312
17 35574363778221

[21,7054,348066,6415638,65419155,449532868,
 2330996068,9790907652,34925259201,109359675810,
 307898807590,793597679082,1898570817663,
 4261710821064,9053571280840,18330419662312,
 35574363778221]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)