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A000799 Floor( 2^n /n ).
(Formerly M0239 N0082)
20
2, 2, 2, 4, 6, 10, 18, 32, 56, 102, 186, 341, 630, 1170, 2184, 4096, 7710, 14563, 27594, 52428, 99864, 190650, 364722, 699050, 1342177, 2581110, 4971026, 9586980, 18512790, 35791394, 69273666, 134217728, 260301048, 505290270, 981706810, 1908874353 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..300

MATHEMATICA

Table[Quotient[2^n, n], {n, 1, 60}] (* Vladimir Joseph Stephan Orlovsky, May 07 2011 *)

PROG

(PARI) a(n)=1<<n\n

CROSSREFS

Cf. A000801, A065482, A082482, A053638.

Sequence in context: A060827 A188288 A064355 * A185030 A063823 A182027

Adjacent sequences:  A000796 A000797 A000798 * A000800 A000801 A000802

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified February 23 17:58 EST 2018. Contains 299584 sequences. (Running on oeis4.)