A077483
formatted as a simple table:
n
a(n)
7
2
8
5
9
31
10
173
11
1521
12
1056
13
16709
14
184183
15
1370009
16
474809
17
13478513
18
150399317
19
1034714947
20
2897704261
[2,5,31,173,1521,1056,16709,184183,1370009,474809, 13478513,150399317,1034714947,2897704261]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 21 10:15 EST 2009. Contains 171081 sequences.
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