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Record history for k=19

k Primes n's Digits Year Discoverer
19 (33277396902 + 139569962n)53#+1 0..18 31 2019 Norman Luhn, NewPGen, PrimeForm
19 1029+999 + 180644894430079832019519#(n-2) 0..18 30 2014 Jaroslaw Wroblewski
19 62749659973280668140514103 + 10761#n 0..18 27 2007 Jaroslaw Wroblewski
19 254215977184797362303 + 53#n 0..18 21 2007 Jaroslaw Wroblewski
19 (273972449 + 25355830n)31#+1 0..18 21 2005 Jens Kruse Andersen
19 (669956329 + 7563194n)23#+1 1..19 18 2002 Markus Frind