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A210109 as a simple table

n a(n)
1 0
2 0
3 0
4 2
5 7
6 23
7 54
8 132
9 290
10 634
11 1342
12 2834
13 5868
14 12140
15 24899
16 50929
17 103735
18 210901
19 427623
20 865910
21 1750505
22 3535098
23 7131321
24 14374647
25 28952661
26 58280123
27 117248217
28 235770302
29 473897980
30 952183214
31 1912535827
32 3840345963
33 7709282937
34 15472242645
35 31045402788
36 62280978042

[0,0,0,2,7,23,54,132,290,634,1342,2834,5868,12140,
 24899,50929,103735,210901,427623,865910,1750505,
 3535098,7131321,14374647,28952661,58280123,
 117248217,235770302,473897980,952183214,
 1912535827,3840345963,7709282937,15472242645,
 31045402788,62280978042]

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Last modified April 29 22:59 EDT 2024. Contains 372114 sequences. (Running on oeis4.)