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A289788 as a simple table

n a(n)
0 1
1 6
2 31
3 156
4 785
5 3954
6 19919
7 100344
8 505489
9 2546430
10 12827791
11 64620756
12 325530881
13 1639881066
14 8260997855
15 41615265264
16 209639359969
17 1056070674294
18 5320018479679
19 26799907726860
20 135006120168881
21 680101314855906
22 3426050596003631
23 17258932500172776

[1,6,31,156,785,3954,19919,100344,505489,2546430,
 12827791,64620756,325530881,1639881066,8260997855,
 41615265264,209639359969,1056070674294,
 5320018479679,26799907726860,135006120168881,
 680101314855906,3426050596003631,
 17258932500172776]

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Last modified June 5 01:34 EDT 2024. Contains 373102 sequences. (Running on oeis4.)