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A124295 formatted as a simple table:

n a(n)
1 1
2 1
3 2
4 6
5 22
6 92
7 426
8 2145
9 11589
10 66425
11 399682
12 2500037
13 16115347
14 106266473
15 712602272
16 4837372576
17 33128183406
18 228308233098
19 1580495251012
20 10976092266889
21 76398165848091
22 532614662149795
23 3717370694711130

[1,1,2,6,22,92,426,2145,11589,66425,399682,
 2500037,16115347,106266473,712602272,4837372576,
 33128183406,228308233098,1580495251012,
 10976092266889,76398165848091,532614662149795,
 3717370694711130]

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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