A067936 Let rep(n) be the n-th repunit number, sequence gives values of n such that : rep(n) == rep(3) (mod n).

1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 21, 24, 25, 30, 33, 39, 40, 50, 51, 55, 57, 60, 69, 75, 87, 93, 100, 105, 111, 120, 123, 125, 129, 141, 150, 159, 165, 177, 183, 195, 200, 201, 213, 219, 222, 231, 237, 249, 250, 267, 273, 275, 291, 300, 303, 309, 321, 327

Offset

1,2

Links

Table of n, a(n) for n=1..60.

Crossrefs

Cf. A002275.

Sequence in context: A070994 A291686 A057197 * A087721 A226244 A140642

Adjacent sequences: A067933 A067934 A067935 * A067937 A067938 A067939

Keyword

easy,nonn

Author

Benoit Cloitre, Mar 05 2002

Status

approved