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A006771 formatted as a simple table:

n a(n)
0 1
1 2
2 4
3 8
4 18
5 46
6 128
7 372
8 1174
9 3820
10 13170
11 46714
12 172490
13 652758
14 2547196
15 10156810
16 41495158
17 172810254
18 734132414
19 3171713642
20 13933910250
21 62121022408
22 280907384318
23 1286617710114
24 5964793344934

[1,2,4,8,18,46,128,372,1174,3820,13170,46714,
 172490,652758,2547196,10156810,41495158,172810254,
 734132414,3171713642,13933910250,62121022408,
 280907384318,1286617710114,5964793344934]

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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