A061819 Multiples of 3 containing only digits 0,1,2,3.

0, 3, 12, 21, 30, 33, 102, 111, 120, 123, 132, 201, 210, 213, 222, 231, 300, 303, 312, 321, 330, 333, 1002, 1011, 1020, 1023, 1032, 1101, 1110, 1113, 1122, 1131, 1200, 1203, 1212, 1221, 1230, 1233, 1302, 1311, 1320, 1323, 1332, 2001, 2010, 2013, 2022, 2031

Offset: 1

Author

Amarnath Murthy, May 28 2001

Keywords

• nonn
• base
• easy

Examples

			132 is a term containing digits less than 4.
		

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000
• Index entries for 10-automatic sequences.

Crossrefs

Cf. A061818.

Programs

Mathematica

Select[3*Range[0,750],Max[IntegerDigits[#]]<4&] (* Harvey P. Dale, Jul 10 2014 *)

Formula

a(n) = A007090(3n), i.e. can also be read as multiples of 3 (A008585) written in base 4.

Extensions

Corrected and extended by Larry Reeves (larryr(AT)acm.org) and Henry Bottomley, May 30 2001