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A086901 formatted as a simple table:

n a(n)
1 1
2 1
3 7
4 31
5 145
6 673
7 3127
8 14527
9 67489
10 313537
11 1456615
12 6767071
13 31438129
14 146053729
15 678529303
16 3152278399
17 14644701505
18 68035641217
19 316076669383
20 1468413601183
21 6821884412881
22 31692778455073
23 147236767058935

[1,1,7,31,145,673,3127,14527,67489,313537,1456615,
 6767071,31438129,146053729,678529303,3152278399,
 14644701505,68035641217,316076669383,
 1468413601183,6821884412881,31692778455073,
 147236767058935]

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


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