A100408
formatted as a simple table:
n
a(n)
1
2
2
7
3
19
4
21
5
25
6
49
7
51
8
1071
[2,7,19,21,25,49,51,1071]
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N. J. A. Sloane
(
njas@research.att.com
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.
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