login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A258275 a(n) = smallest number k > n such that the interval k*100 to k*100+99 has exactly the same prime pattern as the interval n*100 to n*100+99 (or 0 if no such term is known). 0

%I #29 Dec 20 2018 08:27:45

%S 0,0,0,0,0,0,0,0,0,0,4812895043702,0,38905562023,0,2406071834559,0,

%T 834998571515,15367548589719,274894696197322,0,3339850458,0,0,

%U 90345210525,127636130731,0,0,7916673590887,498009080381,1128063679395,616923037,301998772331

%N a(n) = smallest number k > n such that the interval k*100 to k*100+99 has exactly the same prime pattern as the interval n*100 to n*100+99 (or 0 if no such term is known).

%e a(13) = 38905562023 because the primes between 1300 and 1399 are 1301, 1303, 1307, 1319, 1321, 1327, 1361, 1367, 1373, 1381 and 1399 and 38905562023 is the least century>13 that has exactly the same prime pattern: 3890556202301, 3890556202303, 3890556202307, 3890556202319, 3890556202321, 3890556202327, 3890556202361, 3890556202367, 3890556202373, 3890556202381, 3890556202399.

%Y Cf. A164987, A190639, A219996.

%K nonn,hard

%O 1,11

%A _Tim Johannes Ohrtmann_, Jun 25 2015

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 11 19:26 EDT 2024. Contains 374234 sequences. (Running on oeis4.)