A084053 4*n digit-reversed mod 4.

1, 1, 2, 2, 2, 3, 3, 0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 0, 0, 0, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 1, 1, 3, 3, 1, 1, 1, 3, 3, 2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 2, 2, 2, 0, 0, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 0, 0, 0, 2, 2, 0, 0, 0

Offset: 3

Author

Amarnath Murthy and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 26 2003

Keywords

• base
• easy
• nonn

Examples

			a(23) =1 as, 23*4 = 92,digit-reversed = 29 ==1 (mod 4)
		

Crossrefs

Cf. A084052, A084054, A084055, A084339, A084340, A084341.

Programs

Mathematica

Mod[#,4]&/@(FromDigits[Reverse[IntegerDigits[#]]]&/@ (4Range[3,110])) (* Harvey P. Dale, Sep 30 2011 *)

Extensions

More terms from Ray Chandler, May 27 2003