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A215493 as a simple table

n a(n)
0 0
1 1
2 4
3 14
4 49
5 175
6 637
7 2352
8 8771
9 32928
10 124166
11 469567
12 1779141
13 6749211
14 25623472
15 97329337
16 369821228
17 1405502182
18 5342323441
19 20307982135
20 77201862045
21 293497548512
22 1115812645899
23 4242135876440
24 16128056932078
25 61317184775679
26 233122447515741

[0,1,4,14,49,175,637,2352,8771,32928,124166,
 469567,1779141,6749211,25623472,97329337,
 369821228,1405502182,5342323441,20307982135,
 77201862045,293497548512,1115812645899,
 4242135876440,16128056932078,61317184775679,
 233122447515741]

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Last modified April 24 18:17 EDT 2024. Contains 371962 sequences. (Running on oeis4.)