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A126399 as a simple table

n a(n)
0 1
1 12
2 54
3 250
4 1168
5 5486
6 25848
7 122024
8 576748
9 2728038
10 12909648
11 61108496
12 289310874
13 1369855464
14 6486547342
15 30716393200
16 145458062754
17 688830120102
18 3262050022332
19 15447978818780
20 73156731187376
21 346447866034700

[1,12,54,250,1168,5486,25848,122024,576748,
 2728038,12909648,61108496,289310874,1369855464,
 6486547342,30716393200,145458062754,688830120102,
 3262050022332,15447978818780,73156731187376,
 346447866034700]

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Last modified September 14 19:05 EDT 2024. Contains 375929 sequences. (Running on oeis4.)