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A087305 Smallest n-digit non-palindromic number such that it and its digit reversal have the same prime signature. 0

%I

%S 13,107,1002,10002,100006,1000007,10000013,100000005,1000000007,

%T 10000000006,100000000007,1000000000006,10000000000003,

%U 100000000000002,1000000000000003,10000000000000002,100000000000000005

%N Smallest n-digit non-palindromic number such that it and its digit reversal have the same prime signature.

%e a(6) = 100006 = 2*13*1613 and 600001 = 19*23*1373 both have prime signature p*q*r, p,q,r are primes.

%Y Cf. A085869, A068893.

%K base,nonn

%O 2,1

%A _Amarnath Murthy_, Sep 02 2003

%E More terms from _David Wasserman_, Apr 19 2005

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Last modified September 28 04:28 EDT 2022. Contains 357063 sequences. (Running on oeis4.)