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A138349 formatted as a simple table:

n a(n)
0 1
1 0
2 1
3 0
4 3
5 0
6 14
7 0
8 84
9 0
10 594
11 0
12 4719
13 0
14 40898
15 0
16 379236
17 0
18 3711916
19 0
20 37975756
21 0
22 403127256
23 0
24 4415203280
25 0
26 49671036900
27 0
28 571947380775
29 0
30 6721316278650
31 0
32 80419959684900
33 0
34 977737404590100
35 0
36 12058761323277900
37 0

[1,0,1,0,3,0,14,0,84,0,594,0,4719,0,40898,0,
 379236,0,3711916,0,37975756,0,403127256,0,
 4415203280,0,49671036900,0,571947380775,0,
 6721316278650,0,80419959684900,0,977737404590100,
 0,12058761323277900,0]

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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