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A188351 as a simple table

n a(n)
1 9
2 45
3 117
4 565
5 1953
6 9153
7 37269
8 173409
9 766869
10 3589357
11 16545861
12 78195505
13 368573829
14 1757922765
15 8394885777
16 40340645213
17 194259462205
18 938930726781
19 4547344031581
20 22077243778089
21 107366485176765
22 523060579628697

[9,45,117,565,1953,9153,37269,173409,766869,
 3589357,16545861,78195505,368573829,1757922765,
 8394885777,40340645213,194259462205,938930726781,
 4547344031581,22077243778089,107366485176765,
 523060579628697]

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Last modified February 23 15:29 EST 2024. Contains 370283 sequences. (Running on oeis4.)