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 A057563 Numbers k such that the k initial decimal digits of e - 2 form a prime number. 2
 1, 2, 49, 114, 126, 295, 357, 1090, 6152 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(10) > 300000 "or so" (according to S. Batalov, Jul 06 2017). - Eric W. Weisstein, Jun 10 2017 LINKS Titanix [Broken link] EXAMPLE Since e - 2 = 0.71828182845904..., the first terms are: k = 1 gives 7, which is prime. k = 2 gives 71, which is prime. k = 49 gives 7182818284590452353602874713526624977572470936999, which is prime. CROSSREFS Sequence in context: A280188 A058845 A041287 * A297819 A297989 A028479 Adjacent sequences:  A057560 A057561 A057562 * A057564 A057565 A057566 KEYWORD nonn,base,more AUTHOR G. L. Honaker, Jr., Oct 04 2000 EXTENSIONS a(8) proved prime by Andrey V. Kulsha using Titanix. a(9) from Serge Batalov, Jun 21 2017 STATUS approved

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Last modified May 20 08:00 EDT 2022. Contains 353852 sequences. (Running on oeis4.)