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A058941 Numbers k such that 3 + (integer formed from first k digits after decimal point in Pi) is prime. 1
0, 2, 7, 35, 59, 84, 451, 10090 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
No more terms below 10^3. - Patrick De Geest, Nov 25 2001
It is a probable prime for k = 10090. - Metin Sariyar, Jul 02 2020
LINKS
G. L. Honaker, Jr. and C. K. Caldwell, Prime Curios! 1415929
EXAMPLE
a(3) = 7 because 3 + 1415926 is prime.
MATHEMATICA
Select[Range[0, 1000], PrimeQ[3+Floor[(Pi-3)*10^#]]&] (* Metin Sariyar, Jul 02 2020 *)
CROSSREFS
Sequence in context: A231580 A182408 A057298 * A287327 A020066 A024719
KEYWORD
base,nonn,hard,more
AUTHOR
G. L. Honaker, Jr., Jan 12 2001
EXTENSIONS
a(7) from Patrick De Geest, Nov 25 2001
a(8) from Metin Sariyar, Jul 02 2020
STATUS
approved

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)