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A122571 formatted as a simple table:

n a(n)
1 1
2 1
3 13
4 181
5 2521
6 35113
7 489061
8 6811741
9 94875313
10 1321442641
11 18405321661
12 256353060613
13 3570537526921
14 49731172316281
15 692665874901013
16 9647591076297901
17 134373609193269601
18 1871582937629476513

[1,1,13,181,2521,35113,489061,6811741,94875313,
 1321442641,18405321661,256353060613,3570537526921,
 49731172316281,692665874901013,9647591076297901,
 134373609193269601,1871582937629476513]

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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