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A127911 as a simple table

n a(n)
0 0
1 1
2 3
3 9
4 26
5 74
6 208
7 586
8 1647
9 4646
10 13135
11 37247
12 105896
13 301880
14 862498
15 2469480
16 7083690
17 20353886
18 58571805
19 168780848
20 486958481
21 1406524978
22 4066735979
23 11769294050
24 34090034328
25 98820719105
26 286672555274

[0,1,3,9,26,74,208,586,1647,4646,13135,37247,
 105896,301880,862498,2469480,7083690,20353886,
 58571805,168780848,486958481,1406524978,
 4066735979,11769294050,34090034328,98820719105,
 286672555274]

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)