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A001432 formatted as a simple table:

n a(n)
0 1
1 1
2 2
3 5
4 11
5 25
6 66
7 172
8 485
9 1446
10 4541
11 15036
12 52496
13 192218
14 737248
15 2952621
16 12313532
17 53336122
18 239380403
19 1110793092
20 5318743428
21 26233496486
22 133074975399

[1,1,2,5,11,25,66,172,485,1446,4541,15036,52496,
 192218,737248,2952621,12313532,53336122,239380403,
 1110793092,5318743428,26233496486,133074975399]

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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