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 A008905 Leading digit of n!. 19
 1, 1, 2, 6, 2, 1, 7, 5, 4, 3, 3, 3, 4, 6, 8, 1, 2, 3, 6, 1, 2, 5, 1, 2, 6, 1, 4, 1, 3, 8, 2, 8, 2, 8, 2, 1, 3, 1, 5, 2, 8, 3, 1, 6, 2, 1, 5, 2, 1, 6, 3, 1, 8, 4, 2, 1, 7, 4, 2, 1, 8, 5, 3, 1, 1, 8, 5, 3, 2, 1, 1, 8, 6, 4, 3, 2, 1, 1, 1, 8, 7, 5, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Seiichi Manyama, Table of n, a(n) for n = 0..10000 (terms 0..1000 from T. D. Noe) FORMULA a(n) = A000030(A000142(n)). - Reinhard Zumkeller, Apr 08 2012 MATHEMATICA f[n_] := Quotient[ n!, 10^Floor@ Log[10, n!]]; Array[ f, 105, 0] PROG (Haskell) a008905 = a000030 . a000142  -- Reinhard Zumkeller, Apr 08 2012 CROSSREFS Cf. A000966, A000142, A018799, A202021 (leading digit of (10^n)!). Sequence in context: A082516 A318709 A204935 * A136760 A303335 A289382 Adjacent sequences:  A008902 A008903 A008904 * A008906 A008907 A008908 KEYWORD nonn,base,easy AUTHOR EXTENSIONS Two less-efficient Mathematica codings removed by Robert G. Wilson v, Nov 05 2010 STATUS approved

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Last modified November 16 12:40 EST 2018. Contains 317272 sequences. (Running on oeis4.)