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A233298 as a simple table

n a(n)
1 13
2 42
3 141
4 502
5 1739
6 5964
7 20185
8 67609
9 224165
10 737347
11 2407911
12 7814616
13 25223004
14 81015137
15 259099567
16 825507109
17 2621224089
18 8298060296
19 26197890927
20 82506334112
21 259260476024

[13,42,141,502,1739,5964,20185,67609,224165,
 737347,2407911,7814616,25223004,81015137,
 259099567,825507109,2621224089,8298060296,
 26197890927,82506334112,259260476024]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)