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 A003619 Not of form [ e^m ], m >= 1. (Formerly M2300) 2
 1, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS If 1 is excluded (of form [e^0]) then complement of A000149. - Michel Marcus, Jun 16 2013 REFERENCES J. Roberts, Lure of the Integers, Math. Assoc. America, 1992, p. 11. N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 J. Lambek and L. Moser, Inverse and complementary sequences of natural numbers, Amer. Math. Monthly, 61 (1954), 454-458. FORMULA a(n) = n + [ log (n + 1 + [ log (n + 1) ]) ]. MATHEMATICA Table[n + Floor@ Log[n + 1 + Floor@ Log[n + 1]], {n, 50}] (* Michael De Vlieger, Oct 06 2017 *) PROG (PARI) a(n) = n + floor( log (n + 1 + floor( log (n + 1) )) ) \\ Michel Marcus, Jun 16 2013 (Haskell) a003619 n = n + floor (log (x + fromIntegral (floor \$ log x)))             where x = fromIntegral n + 1 -- Reinhard Zumkeller, Mar 17 2015 CROSSREFS Cf. A000195. Sequence in context: A298420 A197354 A089399 * A216846 A288674 A183294 Adjacent sequences:  A003616 A003617 A003618 * A003620 A003621 A003622 KEYWORD nonn AUTHOR STATUS approved

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Last modified April 13 02:38 EDT 2021. Contains 342934 sequences. (Running on oeis4.)