A072805 Primes of form 4k+3 written in base 3.

10, 21, 102, 201, 212, 1011, 1121, 1202, 2012, 2111, 2122, 2221, 10002, 10211, 10222, 11201, 11212, 12011, 12121, 20001, 20012, 20122, 21002, 21101, 21211, 22021, 22102, 22212, 100022, 100202, 101001, 101111, 102101, 102112, 110021

Offset: 1

Author

Labos Elemer, Jul 12 2002

Keywords

• base
• nonn

Examples

			83 ~ 10002 in base 3.
		

Crossrefs

Cf. A008713, A072803-A072807.

Programs

Mathematica

Do[s=Prime[n]; If[Mod[s, 4]==3, Print[BaseForm[s, 3]]], {n, 1, 256}]