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A135889 as a simple table

n a(n)
0 1
1 3
2 12
3 63
4 421
5 3472
6 34380
7 399463
8 5344770
9 81097517
10 1377986373
11 25947738574
12 536726987593
13 12104879913657
14 295754724799758
15 7784814503249896
16 219682110287448760
17 6617691928179590112

[1,3,12,63,421,3472,34380,399463,5344770,81097517,
 1377986373,25947738574,536726987593,
 12104879913657,295754724799758,7784814503249896,
 219682110287448760,6617691928179590112]

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Last modified April 25 06:41 EDT 2024. Contains 371964 sequences. (Running on oeis4.)