A027523
formatted as a simple table:
n
a(n)
2
7
3
19
4
49
5
1962
6
74100
7
100156
8
50911
9
25039
10
13189
11
111925
12
61425
13
172130400
14
15960298816
15
36469482889
[7,19,49,1962,74100,100156,50911,25039,13189, 111925,61425,172130400,15960298816,36469482889]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 5 20:25 EST 2009. Contains 170428 sequences.
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