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 A067088 Floor(X/Y) where X = concatenation of (n+1), (n+2), ...up to 2n and Y = concatenation of 1,2,3,4,... up to n. 10
 2, 2, 3, 4, 54, 6391, 721719, 73719014, 819008271, 900826453, 982644636, 1064462818, 1146281001, 1228099183, 1309917366, 1391735548, 1473553731, 1555371913, 1637190096, 1719008278, 1800826461, 1882644643, 1964462826 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..23. EXAMPLE a(4) = floor(5678/1234) = floor(4.60129659643435980551053484602917) = 4; a(6) = floor(789101112/123456) = 6391. MATHEMATICA f[n_] := (k = 1; x = y = "0"; While[k < n + 1, x = StringJoin[x, ToString[n + k]]; y = StringJoin[y, ToString[2k - 1]]; k++ ]; Return[ Floor[ ToExpression[x] / ToExpression[y]]] ); Table[ f[n], {n, 1, 24} ] CROSSREFS Sequence in context: A361246 A270744 A093927 * A065519 A329792 A058256 Adjacent sequences: A067085 A067086 A067087 * A067089 A067090 A067091 KEYWORD easy,base,nonn AUTHOR Amarnath Murthy, Jan 07 2002 EXTENSIONS More terms from Robert G. Wilson v, Jan 09 2002 Offset corrected by Sean A. Irvine, Dec 02 2023 STATUS approved

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Last modified July 13 14:24 EDT 2024. Contains 374284 sequences. (Running on oeis4.)