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

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Index entries for 10-automatic sequences.

Formula

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

Example

132 is a term containing digits less than 4.

Mathematica

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

Crossrefs

Cf. A061818.

Sequence in context: A043465 A074276 A055041 * A017197 A051369 A069538

Adjacent sequences: A061816 A061817 A061818 * A061820 A061821 A061822

Keyword

nonn,base,easy

Author

Amarnath Murthy, May 28 2001

Extensions

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

Status

approved