login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A002749 Sum of logarithmic numbers.
(Formerly M4767 N2037)
2
1, 1, 1, 11, -7, 389, -1031, 19039, -24431, 1023497, -4044079, 225738611, -1711460279, 29974303501, 4656373513, 3798866053319, -34131041040991, 2131052083901969, -23678368533941471, 832900320313739227, -4752766287768240359, 148482851420849206421 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

REFERENCES

J. M. Gandhi, On logarithmic numbers, Math. Student, 31 (1963), 73-83.

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

Table of n, a(n) for n=0..21.

J. M. Gandhi, On logarithmic numbers, Math. Student, 31 (1963), 73-83. [Annotated scanned copy]

Index entries for sequences related to logarithmic numbers

FORMULA

E.g.f.: F(x)/exp(x)/x where F(x) is o.g.f. for A000005(). - Vladeta Jovovic, Feb 09 2003

MAPLE

A002749 := proc(r)

    add(A260324(n, r), n=1..r+1) ;

end proc:

seq(A002749(r), r=0..25) ; # R. J. Mathar, Jul 24 2015

CROSSREFS

Sequence in context: A038321 A298438 A262866 * A055505 A159526 A090841

Adjacent sequences:  A002746 A002747 A002748 * A002750 A002751 A002752

KEYWORD

sign

AUTHOR

N. J. A. Sloane.

EXTENSIONS

Corrected and extended by Jeffrey Shallit.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 19 23:31 EDT 2019. Contains 327207 sequences. (Running on oeis4.)