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A020964 as a simple table

n a(n)
1 4
2 11
3 28
4 70
5 171
6 417
7 1010
8 2444
9 5905
10 14263
11 34440
12 83154
13 200759
14 484685
15 1170142
16 2824984
17 6820125
18 16465251
19 39750644
20 95966558
21 231683779
22 559334137
23 1350352074
24 3260038308
25 7870428713
26 19000895759

[4,11,28,70,171,417,1010,2444,5905,14263,34440,
 83154,200759,484685,1170142,2824984,6820125,
 16465251,39750644,95966558,231683779,559334137,
 1350352074,3260038308,7870428713,19000895759]

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)