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A061425 Sum of digits = 8 times number of digits. 19
8, 79, 88, 97, 699, 789, 798, 879, 888, 897, 969, 978, 987, 996, 5999, 6899, 6989, 6998, 7799, 7889, 7898, 7979, 7988, 7997, 8699, 8789, 8798, 8879, 8888, 8897, 8969, 8978, 8987, 8996, 9599, 9689, 9698, 9779, 9788, 9797, 9869, 9878, 9887, 9896, 9959 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
879 is a term as the arithmetic mean of the digits is (8+7+9)/3 = 8.
MAPLE
Q:= proc(n, t) option remember; local j, R;
if t > 9*n or t <= 0 then return [] fi;
R:= NULL;
for j from 0 to min(t, 9) do
R:= R, op(map(s -> 10*s+j, procname(n-1, t-j)))
od;
[R]
end proc;
for i from 0 to 9 do Q(1, i):= [i] od:
seq(op(sort(Q(d, 8*d))), d=1..4); # Robert Israel, Dec 07 2020
CROSSREFS
Sequence in context: A145508 A266090 A366214 * A160605 A353100 A224759
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 August 1 06:36 EDT 2024. Contains 374810 sequences. (Running on oeis4.)