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A230221 Smallest of three consecutive palindromic primes with equal digital sum. 1

%I

%S 74747,3627263,110343011,120565021,127747721,156262651,185595581,

%T 185676581,304585403,309272903,317565713,317646713,329585923,

%U 340191043,350474053,368171863,368696863,375070573,376080673,383666383,398676893,728555827,923393329,926787629

%N Smallest of three consecutive palindromic primes with equal digital sum.

%H Shyam Sunder Gupta, <a href="/A230221/b230221.txt">Table of n, a(n) for n = 1..4400</a>

%e 74747 is in the sequence because 74747, 75557 and 76367 are consecutive palindromic primes and the sum of the digits of each = 29.

%Y Cf. A002385, A007953, A007605, A209396, A230199.

%K nonn,base

%O 1,1

%A _Shyam Sunder Gupta_, Oct 12 2013

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Last modified August 10 06:08 EDT 2022. Contains 356029 sequences. (Running on oeis4.)