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A058128
a(1)=1, a(n)=(n^n-n)/(n-1)^2 for n >= 2.
+0
7
1, 2, 6, 28, 195, 1866, 22876, 342392, 6053445, 123456790, 2853116706, 73686780564, 2103299351335, 65751519677858, 2234152501943160, 81985529216486896, 3231407272993502985, 136146740744970718254, 6106233505124424657790
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Maintained by
N. J. A. Sloane
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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