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A109140 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 31
5 69
6 307
7 683
8 3039
9 18917
10 40873
11 264155
12 1097493
13 2459141
14 10934057
15 68063483
16 419314955
17 906693393
18 5859475313
19 24344594645
20 54548664603
21 351636582263
22 1461094993655
23 9118206544193

[1,1,3,7,31,69,307,683,3039,18917,40873,264155,
 1097493,2459141,10934057,68063483,419314955,
 906693393,5859475313,24344594645,54548664603,
 351636582263,1461094993655,9118206544193]

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Last modified May 27 13:56 EDT 2024. Contains 372861 sequences. (Running on oeis4.)