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A025235 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 21
5 61
6 191
7 603
8 1961
9 6457
10 21595
11 72975
12 249085
13 857013
14 2970007
15 10356323
16 36311633
17 127937649
18 452738867
19 1608426647
20 5734534629
21 20511509549
22 73583105007
23 264687136235
24 954482676217
25 3449853902761
26 12495597328011
27 45349353908383

[1,1,3,7,21,61,191,603,1961,6457,21595,72975,
 249085,857013,2970007,10356323,36311633,127937649,
 452738867,1608426647,5734534629,20511509549,
 73583105007,264687136235,954482676217,
 3449853902761,12495597328011,45349353908383]

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Last modified May 16 00:16 EDT 2024. Contains 372549 sequences. (Running on oeis4.)