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A061386 Sum of digits = 3 times number of digits. 3
3, 15, 24, 33, 42, 51, 60, 108, 117, 126, 135, 144, 153, 162, 171, 180, 207, 216, 225, 234, 243, 252, 261, 270, 306, 315, 324, 333, 342, 351, 360, 405, 414, 423, 432, 441, 450, 504, 513, 522, 531, 540, 603, 612, 621, 630, 702, 711, 720, 801, 810, 900, 1029 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..53.

EXAMPLE

126 is a term as the arithmetic mean of the digits is (1+2+6)/3 = 3.

MATHEMATICA

Select[Range[1200], 3IntegerLength[#]==Total[IntegerDigits[#]]&]  (* Harvey P. Dale, Feb 04 2011 *)

PROG

(MAGMA) [ n: n in [1..1030] | &+Intseq(n) eq 3*#Intseq(n) ];  // Bruno Berselli, Jun 30 2011

CROSSREFS

Cf. A061383-A061388, A061423-A061425.

Sequence in context: A142882 A161467 A101133 * A057780 A274697 A129024

Adjacent sequences:  A061383 A061384 A061385 * A061387 A061388 A061389

KEYWORD

nonn,base,easy

AUTHOR

Amarnath Murthy, May 03 2001

EXTENSIONS

More terms from Larry Reeves (larryr(AT)acm.org), May 16 2001

STATUS

approved

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Last modified April 22 04:39 EDT 2019. Contains 322329 sequences. (Running on oeis4.)