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A023008 formatted as a simple table:

n a(n)
0 1
1 9
2 54
3 255
4 1035
5 3753
6 12483
7 38709
8 113265
9 315445
10 841842
11 2164185
12 5382276
13 12994290
14 30543210
15 70066809
16 157199805
17 345552183
18 745377215
19 1579915080
20 3294664578
21 6766656315
22 13700560491
23 27370137195
24 53991639855
25 105242612526

[1,9,54,255,1035,3753,12483,38709,113265,315445,
 841842,2164185,5382276,12994290,30543210,70066809,
 157199805,345552183,745377215,1579915080,
 3294664578,6766656315,13700560491,27370137195,
 53991639855,105242612526]

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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