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A132175 as a simple table

n a(n)
1 4
2 9
3 20
4 43
5 91
6 188
7 384
8 777
9 1564
10 3140
11 6293
12 12601
13 25218
14 50453
15 100925
16 201870
17 403762
18 807547 

[4,9,20,43,91,188,384,777,1564,3140,6293,12601,
 25218,50453,100925,201870,403762,807547]

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Last modified June 8 13:51 EDT 2024. Contains 373217 sequences. (Running on oeis4.)