A159243
formatted as a simple table:
n
a(n)
1
2
2
4
3
8
4
15
5
24
6
41
7
85
8
159
9
314
10
651
11
1267
12
2496
13
4977
14
9889
15
19731
16
38945
17
77356
18
154693
19
308051
20
615768
21
1229080
[2,4,8,15,24,41,85,159,314,651,1267,2496,4977, 9889,19731,38945,77356,154693,308051,615768, 1229080]
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(
njas@research.att.com
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
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