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A069796
Prime(n) and prime(n+4) use the same digits.
4
179, 1091, 1213, 1279, 3313, 3637, 4273, 6637, 8237, 8293, 8537, 9137, 9613, 10937, 12071, 14071, 15137, 19237, 19937, 20639, 21013, 22817, 22937, 24091, 24317, 26713, 28439, 29137, 29837, 31379, 32537, 33037, 33071, 35339, 36913, 37117
OFFSET
1,1
LINKS
EXAMPLE
6637 is a member as the fourth next prime 6673 uses the same digits.
MATHEMATICA
p = {0}; q = {1}; r = {1}; s = {1}; t = {1}; Do[ If[p == t, Print[ Prime[n - 5]]]; p = q; q = r; r = s; s = t; t = Sort[ IntegerDigits[ Prime[n]]], {n, 5 10^3}]
Transpose[Select[Partition[Prime[Range[5000]], 5, 1], Sort[ IntegerDigits[ First[#]]] == Sort[IntegerDigits[Last[#]]]&]][[1]] (* Harvey P. Dale, Dec 26 2015 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Apr 09 2002
EXTENSIONS
Edited, corrected and extended by Robert G. Wilson v, Apr 12 2002
STATUS
approved