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A057969 formatted as a simple table:

n a(n)
0 1
1 5
2 24
3 115
4 551
5 2542
6 11193
7 46547
8 182164
9 670476
10 2325506
11 7624434
12 23716419
13 70253721
14 198905506
15 540079754
16 1410786483
17 3555443969
18 8667153126
19 20484365167
20 47037898503
21 105143200252
22 229178029000

[1,5,24,115,551,2542,11193,46547,182164,670476,
 2325506,7624434,23716419,70253721,198905506,
 540079754,1410786483,3555443969,8667153126,
 20484365167,47037898503,105143200252,
 229178029000]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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