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A236856 as a simple table

n a(n)
0 0
1 1
2 3
3 9
4 21
5 81
6 141
7 561
8 1401
9 3921
10 6441
11 34161
12 61881
13 422241
14 782601
15 1142961
16 1863681
17 14115921
18 26368161
19 259160721
20 491953281
21 724745841
22 957538401
23 6311767281
24 11665996161
25 38437140561
26 65208284961
27 145521718161
28 225835151361
29 2554924714161

[0,1,3,9,21,81,141,561,1401,3921,6441,34161,61881,
 422241,782601,1142961,1863681,14115921,26368161,
 259160721,491953281,724745841,957538401,
 6311767281,11665996161,38437140561,65208284961,
 145521718161,225835151361,2554924714161]

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Last modified September 2 05:36 EDT 2024. Contains 375604 sequences. (Running on oeis4.)