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A112495 formatted as a simple table:

n a(n)
0 3
1 25
2 130
3 546
4 2037
5 7071
6 23436
7 75328
8 237127
9 735813
10 2260518
11 6896046
12 20933673
13 63325051
14 191088976
15 575625900
16 1731858075
17 5206059585
18 15640198410
19 46966732090
20 140996664733
21 423191320215
22 1269993390420

[3,25,130,546,2037,7071,23436,75328,237127,735813,
 2260518,6896046,20933673,63325051,191088976,
 575625900,1731858075,5206059585,15640198410,
 46966732090,140996664733,423191320215,
 1269993390420]

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


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