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A260133 as a simple table

n a(n)
1 138
2 342
3 1162
4 2966
5 7698
6 22522
7 61914
8 165954
9 462030
10 1279574
11 3493270
12 9617162
13 26547878
14 72931662
15 200533394
16 552344746
17 1519650534
18 4179817642
19 11503670758
20 31655891034
21 87092868954
22 239649098010
23 659447987986

[138,342,1162,2966,7698,22522,61914,165954,462030,
 1279574,3493270,9617162,26547878,72931662,
 200533394,552344746,1519650534,4179817642,
 11503670758,31655891034,87092868954,239649098010,
 659447987986]

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Last modified January 18 09:26 EST 2022. Contains 350454 sequences. (Running on oeis4.)