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 A175438 Primes such that even and odd digits separately are in ascending order. 2

%I #8 Feb 12 2013 18:09:20

%S 2,3,5,7,13,17,19,23,29,37,41,43,47,59,61,67,79,83,89,103,107,109,127,

%T 137,139,149,157,163,167,179,239,241,257,263,269,281,283,307,347,349,

%U 359,367,379,389,419,439,457,461,463,467,479,487,509,547,569,587,613

%N Primes such that even and odd digits separately are in ascending order.

%C There are 910 such primes with a(910)=302547689=prime(16382892).

%C Indices of primes in A175439:

%C 1,2,3,4,6,7,8,9,10,12,13,14,15,17,18,19,22,23,24,27,28,29,31,33,34,35,37,38.

%H Zak Seidov, <a href="/A175438/b175438.txt">Table of n, a(n) for n = 1..910</a> (complete sequence)

%Y Cf. A175439.

%K base,fini,full,nonn

%O 1,1

%A _Zak Seidov_, May 15 2010

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Last modified September 25 22:30 EDT 2023. Contains 365649 sequences. (Running on oeis4.)