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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 Robert Israel, Table of n, a(n) for n = 1..10000 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 Cf. A061383-A061388, A061423-A061424. Sequence in context: A303507 A145508 A266090 * A160605 A353100 A224759 Adjacent sequences: A061422 A061423 A061424 * A061426 A061427 A061428 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 September 24 19:02 EDT 2023. Contains 365581 sequences. (Running on oeis4.)