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A110704 Primes of form "n 42's followed by 43". 1

%I #6 Mar 30 2012 17:29:49

%S 43,4243,424243,42424243,4242424243,4242424242424243,

%T 424242424242424242424242424242424243,

%U 42424242424242424242424242424242424242424242424243

%N Primes of form "n 42's followed by 43".

%C Products of first three (77402711107), four (3283751424862167001) and five (13931066652821050218557005243) terms are Zeisel numbers (A051015) with coefficients (100,-57).

%t t = 1; Do[ t = t*100 - 57; If[PrimeQ[t], Print[t]], {n, 0, 24}]

%Y Cf. A110705.

%K nonn

%O 1,1

%A _Ray Chandler_, Aug 04 2005

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Last modified April 24 12:22 EDT 2024. Contains 371937 sequences. (Running on oeis4.)