A077278
formatted as a simple table:
n
a(n)
1
2
2
5
3
13
4
31
5
43
6
67
7
79
8
97
9
131
10
179
11
199
12
257
13
293
14
313
15
359
16
389
17
409
18
431
19
443
20
467
[2,5,13,31,43,67,79,97,131,179,199,257,293,313, 359,389,409,431,443,467]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 11 12:57 EST 2009. Contains 170656 sequences.
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