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A220388 as a simple table

n a(n)
1 1
2 21
3 136
4 757
5 5114
6 33247
7 211944
8 1358599
9 8710809
10 55837516
11 357929465
12 2294335738
13 14706528192
14 94267737477
15 604248583206
16 3873181842138
17 24826757202429
18 159137319721129
19 1020056076249840
20 6538468564699587

[1,21,136,757,5114,33247,211944,1358599,8710809,
 55837516,357929465,2294335738,14706528192,
 94267737477,604248583206,3873181842138,
 24826757202429,159137319721129,1020056076249840,
 6538468564699587]

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Last modified May 9 18:10 EDT 2024. Contains 372354 sequences. (Running on oeis4.)