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A126408 as a simple table

n a(n)
0 1
1 21
2 99
3 475
4 2293
5 11111
6 53973
7 262649
8 1279855
9 6243155
10 30479985
11 148910385
12 727918557
13 3559976043
14 17417455619
15 85244931269
16 417326666085
17 2043565752795
18 10008988327829
19 49030629716903
20 240219997723397

[1,21,99,475,2293,11111,53973,262649,1279855,
 6243155,30479985,148910385,727918557,3559976043,
 17417455619,85244931269,417326666085,
 2043565752795,10008988327829,49030629716903,
 240219997723397]

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Last modified April 19 10:38 EDT 2024. Contains 371791 sequences. (Running on oeis4.)