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A032240 as a simple table

n a(n)
1 3
2 3
3 1
4 3
5 12
6 37
7 117
8 333
9 975
10 2712
11 7689
12 21414
13 60228
14 168597
15 475024
16 1338525
17 3788400
18 10741575
19 30556305
20 87109332
21 248967446
22 713025093
23 2046325125
24 5883406830
25 16944975036
26 48880411272
27 141212376513

[3,3,1,3,12,37,117,333,975,2712,7689,21414,60228,
 168597,475024,1338525,3788400,10741575,30556305,
 87109332,248967446,713025093,2046325125,
 5883406830,16944975036,48880411272,141212376513]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)