A057331
formatted as a simple table:
n
a(n)
0
2
1
2
2
2
3
2
4
2
5
89
6
1122659
7
19099919
8
85864769
9
26089808579
10
554688278429
11
4090932431513069
[2,2,2,2,2,89,1122659,19099919,85864769, 26089808579,554688278429,4090932431513069]
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Maintained by
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(
njas@research.att.com
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
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