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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A052033 Primes base 10 that are never primes in any smaller base b, 2<=b<10, expansions interpreted as decimal numbers. 21
 263, 269, 347, 397, 431, 461, 479, 499, 569, 599, 607, 677, 683, 719, 769, 797, 821, 929, 941, 1019, 1031, 1049, 1051, 1061, 1069, 1103, 1181, 1223, 1229, 1237, 1297, 1307, 1367, 1399, 1409, 1439, 1453, 1487, 1489, 1523, 1553, 1559, 1571, 1619, 1637 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Sebastian Petzelberger, Table of n, a(n) for n = 1..10000 C. Rivera, PP&P Puzzle 24: Primes in several bases MATHEMATICA Select[Prime[Range@ 265], Count[PrimeQ /@ Table[FromDigits[IntegerDigits[#, i]], {i, 2, 9}], True] == 0 &] (* Michael De Vlieger, Mar 20 2015 after Harvey P. Dale at A052032 *) CROSSREFS Cf. A038537, A052026-A052033, A236174, A236437, A235354, A235377. Sequence in context: A241877 A270752 A224556 * A105008 A345577 A345834 Adjacent sequences: A052030 A052031 A052032 * A052034 A052035 A052036 KEYWORD nonn,base AUTHOR Patrick De Geest, Dec 15 1999 STATUS approved

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.

Last modified September 28 01:19 EDT 2023. Contains 365714 sequences. (Running on oeis4.)