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A089126 formatted as a simple table:

n a(n)
0 1
1 1
2 1
3 2
4 5
5 19
6 110
7 975
8 13555
9 297330
10 10393875
11 581772345
12 52349401830
13 7590091602225
14 1776029657181945
15 671331672100911690
16 410181883162313724165
17 405259031001185201881755

[1,1,1,2,5,19,110,975,13555,297330,10393875,
 581772345,52349401830,7590091602225,
 1776029657181945,671331672100911690,
 410181883162313724165,405259031001185201881755]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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