A053943
formatted as a simple table:
n
a(n)
1
4
2
9
3
49
4
44944
5
4439449
6
344443393449
7
433433939449
8
34449444994349999433343349994949439344449
[4,9,49,44944,4439449,344443393449,433433939449, 34449444994349999433343349994949439344449]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
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