|
| |
|
|
A000750
|
|
Expansion of bracket function.
(Formerly M3851 N1576)
|
|
6
| |
|
|
1, -5, 15, -35, 70, -125, 200, -275, 275, 0, -1000, 3625, -9500, 21250, -42500, 76875, -124375, 171875, -171875, 0, 621875, -2250000, 5890625, -13171875, 26343750, -47656250, 77109375, -106562500, 106562500, 0
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
COMMENTS
| It appears that the (unsigned) sequence is identical to its 5th order absolute difference. - John W. Layman (layman(AT)math.vt.edu), Sep 23 2003
|
|
|
REFERENCES
| H. W. Gould, Binomial coefficients, the bracket function and compositions with relatively prime summands, Fib. Quart. 2 (1964), 241-260.
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).
|
|
|
FORMULA
| G.f.: 1/((1+x)^5-x^5).
|
|
|
CROSSREFS
| Cf. A000748, A000749, A001659, A006090, A049016.
Sequence in context: A069983 A005894 A015622 * A008487 A000743 A138779
Adjacent sequences: A000747 A000748 A000749 * A000751 A000752 A000753
|
|
|
KEYWORD
| sign,easy
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
