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A007999 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 3
4 8
5 19
6 64
7 213
8 880
9 3717
10 18288
11 92935
12 531440
13 3147495
14 20525168
15 138638825
16 1015694832
17 7700244745
18 62623847536
19 526317901451
20 4705365925872
21 43407723925499
22 423149546210416
23 4250149857500861
24 44868038386273776

[1,1,2,3,8,19,64,213,880,3717,18288,92935,531440,
 3147495,20525168,138638825,1015694832,7700244745,
 62623847536,526317901451,4705365925872,
 43407723925499,423149546210416,4250149857500861,
 44868038386273776]

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


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