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A017923 as a simple table

n a(n)
0 1
1 2
2 6
3 15
4 36
5 88
6 216
7 529
8 1296
9 3175
10 7776
11 19047
12 46656
13 114283
14 279936
15 685700
16 1679616
17 4114202
18 10077696
19 24685213
20 60466176
21 148111278
22 362797056
23 888667667
24 2176782336
25 5332006004
26 13060694016

[1,2,6,15,36,88,216,529,1296,3175,7776,19047,
 46656,114283,279936,685700,1679616,4114202,
 10077696,24685213,60466176,148111278,362797056,
 888667667,2176782336,5332006004,13060694016]

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Last modified March 29 11:14 EDT 2024. Contains 371278 sequences. (Running on oeis4.)