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A268256 as a simple table

n a(n)
1 13
2 43
3 143
4 479
5 1616
6 5492
7 18804
8 64869
9 225483
10 789747
11 2787100
12 9910252
13 35501416
14 128109313
15 465606659
16 1704022367
17 6278399432
18 23282368196
19 86873186508
20 326055377709
21 1230562324251
22 4668500002491
23 17797745988388

[13,43,143,479,1616,5492,18804,64869,225483,
 789747,2787100,9910252,35501416,128109313,
 465606659,1704022367,6278399432,23282368196,
 86873186508,326055377709,1230562324251,
 4668500002491,17797745988388]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)