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 A331476 The (10^n)-th even-digit number. 2
 0, 28, 688, 24888, 608888, 22288888, 446888888, 20048888888, 402088888888, 8042888888888, 260868888888888, 6228488888888888, 224680888888888888, 4604628888888888888, 202202688888888888888, 4044064888888888888888, 80882408888888888888888 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 0..698 FORMULA a(n) = A014263(10^n). MAPLE b:= proc(n) local m, r; m, r:= n-1, 0;       while m>0 do r:= 2*irem(m, 5, 'm'), r od;       parse(cat(r))/10     end: a:= n-> b(10^n): seq(a(n), n=0..20); CROSSREFS Cf. A014263, A075879. Sequence in context: A269473 A278805 A160141 * A239408 A215857 A185987 Adjacent sequences:  A331473 A331474 A331475 * A331477 A331478 A331479 KEYWORD nonn,base AUTHOR Alois P. Heinz, Jan 17 2020 STATUS approved

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Last modified May 16 12:38 EDT 2021. Contains 343947 sequences. (Running on oeis4.)