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A087325 Numbers n such that n and its 10's complement both have the same prime signature. 1

%I #6 Dec 05 2013 19:56:21

%S 3,5,7,11,14,15,17,26,29,30,35,38,41,47,50,53,59,62,65,70,71,74,83,85,

%T 86,89,94,97,110,111,113,122,129,132,134,137,140,150,153,158,170,173,

%U 174,179,183,185,186,187,191,195,201,206,209,212,215,219,221,227,236

%N Numbers n such that n and its 10's complement both have the same prime signature.

%C Conjecture: (1) Sequence is infinite. (2) For every prime signature there corresponds a term in this sequence.

%e 35 is a member as 35= 5*7 and its 10's complement (100-35) = 65 = 13*5 both have the prime signature p*q.

%e 35 is a member as 35 = 5*7 and its 10's complement (100-35) = 65 = 13*5 both have the prime signature p*q.

%Y Cf. A087324.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 04 2003

%E More terms from _David Wasserman_, May 06 2005

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Last modified April 18 02:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)