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A078433
Number of permutations p of 1,2,...,n such that the numerator of the continued fraction [p(1); p(2),...,p(n)] is prime.
+0
3
0, 2, 2, 10, 30, 124, 992, 5700, 39844
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.
AT&T Labs Research
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