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A170811 as a simple table

n a(n)
1 1
2 2
3 4
4 12
5 40
6 116
7 200
8 444
9 760
10 2160
11 4368
12 7852
13 14040
14 24284
15 42312
16 79340
17 152764
18 320920
19 688780
20 1577244
21 3763512
22 9412948 

[1,2,4,12,40,116,200,444,760,2160,4368,7852,14040,
 24284,42312,79340,152764,320920,688780,1577244,
 3763512,9412948]

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Last modified May 4 10:30 EDT 2024. Contains 372240 sequences. (Running on oeis4.)