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A001541 formatted as a simple table:

n a(n)
0 1
1 3
2 17
3 99
4 577
5 3363
6 19601
7 114243
8 665857
9 3880899
10 22619537
11 131836323
12 768398401
13 4478554083
14 26102926097
15 152139002499
16 886731088897
17 5168247530883
18 30122754096401
19 175568277047523
20 1023286908188737

[1,3,17,99,577,3363,19601,114243,665857,3880899,
 22619537,131836323,768398401,4478554083,
 26102926097,152139002499,886731088897,
 5168247530883,30122754096401,175568277047523,
 1023286908188737]

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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