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A225541 Floor(W(n)) where W is the Lambert W function. 1
0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,16

LINKS

Charles R Greathouse IV, Table of n, a(n) for n = 0..10000

FORMULA

a(n) = log n - log log n + O(1). - Charles R Greathouse IV, Dec 27 2013

MATHEMATICA

Table[Floor[ProductLog[n]], {n, 0, 100}]

PROG

(PARI) a(n)=lambertw(n)\1 \\ Charles R Greathouse IV, Dec 27 2013

CROSSREFS

Sequence in context: A102572 A098391 A071702 * A076303 A242253 A071839

Adjacent sequences:  A225538 A225539 A225540 * A225542 A225543 A225544

KEYWORD

nonn

AUTHOR

José María Grau Ribas, May 17 2013

STATUS

approved

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Last modified October 15 04:33 EDT 2019. Contains 328026 sequences. (Running on oeis4.)