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A140595 Vertical lecture of A140485 (1,4,9,13) .If signed, a=1-1/2+1/3-1/4+1/5 is a constant "not to far" from log2=0.69315.With transform in A100597,A129891 or A130620, the corresponding polynomial family has roots along a curve which is to compare to fig 2 of P. Flajolet, X. Gourdon, B.Salvy Gazette des Mathematiciens 1993, 55, pp. 67-78. +0
1
1, 2, 3, 4, 5, 6, 7, 9, 8, 11, 10, 13, 14, 12, 15, 16, 18, 19, 17, 21, 23, 22, 20, 25, 26, 24, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A031978 A065306 A065307 this_sequence A063932 A071191 A097428

Adjacent sequences: A140592 A140593 A140594 this_sequence A140596 A140597 A140598

KEYWORD

nonn,uned

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Jul 07 2008

EXTENSIONS

The recently-edited A130620 may provide some clues about this sequence. - N. J. A. Sloane, Aug 26 2009

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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