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A116027 Numbers k such that k + phi(k) + phi(phi(k)) is a repdigit. 0
1, 2, 3, 4, 5, 6, 14, 23, 28, 45, 51, 55, 56, 63, 161, 189, 275, 543, 567, 1373, 13499, 13642, 25963, 27284, 54568, 135347, 138587, 304779, 1296346, 2592692, 5185384, 45994399, 338193377, 419192721, 1492937222, 1724137953, 2453038739, 2985874444, 4687039999 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
EXAMPLE
5185384 + phi(5185384) + phi(phi(5185384)) = 8888888.
CROSSREFS
Sequence in context: A250047 A084830 A116044 * A085157 A065637 A325805
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 13 2006
EXTENSIONS
a(32)-a(39) from Donovan Johnson, Feb 18 2013
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)