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A168519 as a simple table

n a(n)
1 21
2 44
3 323
4 785
5 2620
6 4925
7 10184
8 13848
9 19697
10 19302
11 19040
12 13450
13 9269
14 4538
15 2174
16 633
17 231
18 44
19 3
20 0
21 0 

[21,44,323,785,2620,4925,10184,13848,19697,19302,
 19040,13450,9269,4538,2174,633,231,44,3,0,0]

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Last modified April 19 10:28 EDT 2024. Contains 371782 sequences. (Running on oeis4.)