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A067935 Let rep(n) be the n-th repunit number, sequence gives values of n such that : rep(n)==rep(2) (mod n). 0
1, 2, 4, 5, 10, 14, 20, 22, 25, 26, 34, 38, 44, 46, 50, 58, 62, 74, 82, 86, 94, 100, 106, 110, 118, 122, 134, 140, 142, 146, 158, 166, 178, 182, 185, 194, 202, 206, 214, 218, 220, 226, 254, 260, 262, 274, 278, 298, 302, 308, 314, 326, 334, 346, 350, 358, 362 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

(10^5-1)/9=11+5*2220 hence 5 is in the sequence

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Cf. A002275.

Sequence in context: A154318 A008283 A002237 * A228893 A272622 A097133

Adjacent sequences:  A067932 A067933 A067934 * A067936 A067937 A067938

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Mar 05 2002

STATUS

approved

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Last modified December 3 16:24 EST 2016. Contains 278745 sequences.