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%I #7 Dec 15 2017 17:36:47
%S 12,44,75,237,3186,4379,5535,6363,13707,14463
%N Numbers n such that 4440011 * 10^n - 1 is prime.
%C These are primes with square digits and they have all been certified. No more terms up to 37000. Primality proof for the largest: PFGW Version 20041001.Win_Stable (v1.2 RC1b) [FFT v23.8] Primality testing 4440011*10^14463-1 [N+1, Brillhart-Lehmer-Selfridge] Running N+1 test using discriminant 3, base 1+sqrt(3) 4440011*10^14463-1 is prime! (268.8294s+0.0548s)
%H R. Ondrejka, <a href="http://www.utm.edu/research/primes/lists/top_ten/">The Top Ten: a Catalogue of Primal Configurations</a>.
%o (PARI) is(n)=ispseudoprime(4440011*10^n-1) \\ _Charles R Greathouse IV_, Jun 13 2017
%Y Cf. A061246.
%K nonn
%O 1,1
%A _Jason Earls_, May 18 2005
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