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A096505 Primes of [1+repdigit] form. Primes whose totient is repdigit. 2
3, 5, 7, 23, 67, 89, 223, 666667, 22222223, 66666667, 666666667, 22222222223, 66666666667, 88888888888889, 88888888888888889, 66666666666666666667, 66666666666666666666667, 88888888888888888888888888888888889 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
n=89 prime, its totient=88 is a decimal repdigit.
CROSSREFS
Sequence in context: A288890 A120384 A216124 * A214680 A141802 A029846
KEYWORD
base,nonn
AUTHOR
Labos Elemer, Jul 12 2004
STATUS
approved

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Last modified April 24 11:49 EDT 2024. Contains 371936 sequences. (Running on oeis4.)