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A073344 as a simple table

n a(n)
1 0
2 0
3 2
4 7
5 23
6 105
7 386
8 1674
9 6121
10 25072
11 89070
12 391317
13 1432287
14 5414201
15 20125565
16 80661495
17 273257927
18 1073041080
19 3588277692
20 13732078994
21 49417761548
22 176544997915
23 551992576980
24 2143844160219
25 7367037483012

[0,0,2,7,23,105,386,1674,6121,25072,89070,391317,
 1432287,5414201,20125565,80661495,273257927,
 1073041080,3588277692,13732078994,49417761548,
 176544997915,551992576980,2143844160219,
 7367037483012]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)