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A087318 Smallest number of the form n^k +1 with the prime signature of n, or 0 if no such number exists. 1

%I

%S 0,2,2,0,2,217,2,0,0,10001,2,0,2,15,226,0,2,325,2,0,22,485,2,0,0,

%T 456977,0,0,2,27001,2,0,34,35,1226,0,2,39,1522,0,2,130691233,2,45,0,

%U 2117,2,0,0,0,2602,0,2,0,0,0,58,3365,2,0,2,3845,0,0,4226,287497,2,0,4762,24010001

%N Smallest number of the form n^k +1 with the prime signature of n, or 0 if no such number exists.

%C If n is an i-th power for i > 1, than a(n) = 0. The other zeros are conjectures. I have checked 12, 20 and 24 for k up to 400; 28, 40, 45, 48, 50, 52, 54, 55, 56, 63 and 68 for k up to 200 and 60 for k up to 100. - _David Wasserman_, May 09 2005

%Y Cf. A087319.

%K nonn

%O 2,2

%A _Amarnath Murthy_, Sep 03 2003

%E More terms from _David Wasserman_, May 09 2005

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Last modified October 20 03:04 EDT 2021. Contains 348099 sequences. (Running on oeis4.)