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A207070 as a simple table

n a(n)
1 6
2 36
3 102
4 288
5 896
6 2499
7 6634
8 17848
9 47192
10 122200
11 315315
12 809784
13 2063670
14 5238225
15 13261490
16 33465000
17 84237826
18 211676500
19 531027000
20 1330245423
21 3328592562
22 8320844952
23 20782671568
24 51871277456
25 129387019195
26 322571437760

[6,36,102,288,896,2499,6634,17848,47192,122200,
 315315,809784,2063670,5238225,13261490,33465000,
 84237826,211676500,531027000,1330245423,
 3328592562,8320844952,20782671568,51871277456,
 129387019195,322571437760]

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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)