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A289789 as a simple table

n a(n)
0 1
1 6
2 26
3 111
4 460
5 1905
6 7910
7 32880
8 136675
9 568050
10 2360825
11 9811650
12 40777750
13 169474875
14 704348000
15 2927312625
16 12166086250
17 50562982500
18 210142784375
19 873366003750
20 3629761440625
21 15085506018750
22 62696266831250
23 260569441284375
24 1082942209562500

[1,6,26,111,460,1905,7910,32880,136675,568050,
 2360825,9811650,40777750,169474875,704348000,
 2927312625,12166086250,50562982500,210142784375,
 873366003750,3629761440625,15085506018750,
 62696266831250,260569441284375,1082942209562500]

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Last modified May 29 16:36 EDT 2024. Contains 372952 sequences. (Running on oeis4.)