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A155544
Indices of primes having three or more identical digits.
1
187, 190, 193, 194, 240, 275, 280, 303, 318, 331, 345, 404, 430, 466, 468, 470, 471, 476, 481, 494, 521, 532, 566, 603, 604, 669, 706, 733, 859, 917, 935, 946, 962, 979, 981, 984, 995, 1020, 1107, 1117, 1140, 1224, 1227, 1230, 1231, 1242, 1245, 1246, 1251, 1253, 1268
OFFSET
1,1
LINKS
EXAMPLE
946 is in the sequence because prime(946) = 7477 has three identical digits.
MATHEMATICA
Select[Range[1300], Max[DigitCount[Prime[#]]]>2&] (* Harvey P. Dale, Mar 08 2013 *)
CROSSREFS
Sequence in context: A226675 A226672 A086000 * A221974 A227869 A081703
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Edited by N. J. A. Sloane, Jan 30 2009
Definition corrected, 859, 946, 962, 979 inserted by R. J. Mathar, May 15 2010
STATUS
approved