A086883 Numbers n such that the decimal expansion of 1/n is nonterminating and contains arbitrarily long palindromic substrings.

3, 6, 9, 11, 12, 15, 18, 22, 24, 30, 33, 36, 44, 45, 48, 55, 60, 66, 72, 75, 88, 90, 91, 96, 99, 101, 110, 111, 120, 132, 137, 144, 150, 165, 176, 180, 182, 192, 198, 220, 225, 240, 264, 273, 275, 288, 300, 303, 330, 333, 352, 360, 364, 375, 384, 396, 440, 444

Offset

1,1

Comments

If n is a member, then 2n and 5n are usually also members; however, 2*101 and 5*91 are not members.

Links

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

Example

91 is a member because 1/91 contains the palindromes 010, 010989010, 010989010989010, etc.

Crossrefs

Sequence in context: A230193 A201462 A189302 * A154777 A338432 A288821

Adjacent sequences: A086880 A086881 A086882 * A086884 A086885 A086886

Keyword

base,nonn

Author

Donald S. McDonald, Aug 22 2003

Extensions

Edited and extended by David Wasserman, Jan 19 2006

Status

approved