A260052 Composites whose prime factorization in base 8 is an anagram of the number in base 8.

27, 85, 169, 175, 771, 4369, 4803, 5359, 6805, 7339, 19405, 21689, 24433, 36526, 40405, 40799, 41723, 41773, 43999, 44353, 46131, 47447, 48819, 49917, 54965, 71047, 74273, 87823, 107892, 130683, 131026, 139157, 246977, 268885, 269977

Offset

1,1

Links

Giovanni Resta, Table of n, a(n) for n = 1..10000

Example

27 = 3^3. In base 8, 33 = 3^3.

Mathematica

Select[Range[10^6], !PrimeQ[#] && Sort@ IntegerDigits[#, 8] == Sort@ Flatten@ IntegerDigits[ Select[ Flatten@ FactorInteger@ #, #>1 &], 8] &] (* Giovanni Resta, Jul 14 2015 *)

Crossrefs

Cf. A260046, A260047, A260048, A260049, A260050, A260051, A260053, A025283, A260054, A260055.

Sequence in context: A035074 A036925 A281090 * A028993 A262367 A007266

Adjacent sequences: A260049 A260050 A260051 * A260053 A260054 A260055

Keyword

base,easy,nonn

Author

Stephen Tucker, Jul 14 2015

Status

approved