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A089455 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0
10 0
11 0
12 0
13 0
14 3
15 69
16 798
17 7021
18 51775
19 339958
20 2053872
21 11665593
22 63192945
23 329798278
24 1670466031
25 8256762365
26 39992202198

[0,0,0,0,0,0,0,0,0,0,0,0,0,3,69,798,7021,51775,
 339958,2053872,11665593,63192945,329798278,
 1670466031,8256762365,39992202198]

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Last modified December 16 07:41 EST 2017. Contains 296076 sequences.