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A104329 Primes which are the reverse concatenation of four consecutive prime numbers. 1

%I #6 Nov 13 2021 15:59:03

%S 59534743,157151149139,251241239233,337331317313,359353349347,

%T 401397389383,521509503499,613607601599,661659653647,757751743739,

%U 1093109110871069,1151112911231117,1229122312171213,1439143314291427

%N Primes which are the reverse concatenation of four consecutive prime numbers.

%H Harvey P. Dale, <a href="/A104329/b104329.txt">Table of n, a(n) for n = 1..1000</a>

%e The first term is 59534743 which is a prime and is the reverse concatenation of 43,47,53 and 59 which are four consecutive prime numbers.

%t Select[FromDigits[Flatten[IntegerDigits/@Reverse[#]]]&/@Partition[ Prime[ Range[300]],4,1],PrimeQ] (* _Harvey P. Dale_, Nov 13 2021 *)

%K base,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Apr 17 2005

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Last modified April 23 18:16 EDT 2024. Contains 371916 sequences. (Running on oeis4.)