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A067943 Let rep(n) be the n-th repunit number, sequence gives values of n such that rep(n)==rep(10) (mod n). 0
1, 2, 4, 5, 8, 10, 16, 20, 22, 25, 28, 32, 37, 40, 44, 50, 52, 64, 70, 80, 88, 100, 110, 112, 125, 128, 130, 146, 148, 154, 160, 170, 176, 190, 200, 202, 205, 208, 220, 230, 250, 256, 274, 280, 286, 290, 310, 320, 352, 364, 370, 400, 410, 430, 440, 442, 448, 470 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..58.

CROSSREFS

Cf. A002275.

Sequence in context: A114652 A191288 A181666 * A067937 A003592 A192716

Adjacent sequences:  A067940 A067941 A067942 * A067944 A067945 A067946

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre, Mar 05 2002

STATUS

approved

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Last modified January 21 08:23 EST 2022. Contains 350475 sequences. (Running on oeis4.)