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A102991 as a simple table

n a(n)
1 0
2 1
3 4
4 7
5 19
6 34
7 54
8 78
9 90
10 213
11 307
12 702
13 1456
14 2139
15 2214
16 3066
17 9300
18 16440
19 16894
20 28575
21 54051 

[0,1,4,7,19,34,54,78,90,213,307,702,1456,2139,
 2214,3066,9300,16440,16894,28575,54051]

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Last modified June 10 10:32 EDT 2024. Contains 373264 sequences. (Running on oeis4.)