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A090460 formatted as a simple table:

n a(n)
15 1
16 1
17 1
18 0
19 0
20 0
21 0
22 0
23 3
24 0
25 10
26 12
27 35
28 52
29 19
30 20
31 349
32 361
33 637
34 3678
35 15237
36 11875
37 13306
38 10964
39 27223
40 37054
41 201408
42 510152

[1,1,1,0,0,0,0,0,3,0,10,12,35,52,19,20,349,361,
 637,3678,15237,11875,13306,10964,27223,37054,
 201408,510152]

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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