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A026333 as a simple table

n a(n)
0 1
1 3
2 21
3 156
4 1221
5 9828
6 80579
7 669273
8 5612505
9 47416278
10 402953376
11 3440825160
12 29498259546
13 253737784446
14 2188855109385
15 18928808608996
16 164046653525181

[1,3,21,156,1221,9828,80579,669273,5612505,
 47416278,402953376,3440825160,29498259546,
 253737784446,2188855109385,18928808608996,
 164046653525181]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)