|
| |
|
|
A083074
|
|
n^3 - n^2 - n - 1.
|
|
4
| |
|
|
-1, -2, 1, 14, 43, 94, 173, 286, 439, 638, 889, 1198, 1571, 2014, 2533, 3134, 3823, 4606, 5489, 6478, 7579, 8798, 10141, 11614, 13223, 14974, 16873, 18926, 21139, 23518, 26069, 28798, 31711, 34814, 38113, 41614, 45323, 49246, 53389, 57758, 62359, 67198, 72281
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
COMMENTS
| Values of tribonacci polynomial n^3-n^2-n-1 for n=0,1,2,3,4,.... - Artur Jasinski (grafix(AT)csl.pl), Nov 19 2006
|
|
|
LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..780
|
|
|
FORMULA
| a(n)=n^3+5n^2+7n+1=(n(n+2)^3+1)/(n+1) [with a different offset].
|
|
|
MATHEMATICA
| Table[n^3 - n^2 - n - 1, {n, 0, 41}] (* Artur Jasinski (grafix(AT)csl.pl), Nov 19 2006 *)
|
|
|
PROG
| (MAGMA) [n^3 - n^2 - n - 1: n in [0..60]]; // Vincenzo Librandi, Apr 26 2011
|
|
|
CROSSREFS
| Apart from initial terms, a column of A083064.
Cf. A000027, A028387, A002378.
Sequence in context: A080346 A124026 A106204 * A181869 A141510 A039652
Adjacent sequences: A083071 A083072 A083073 * A083075 A083076 A083077
|
|
|
KEYWORD
| easy,sign
|
|
|
AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Apr 21 2003
|
|
|
EXTENSIONS
| Simpler definition from Alonso Delarte (alonso.delarte(AT)gmail.com), Sep 16 2004
More terms from Artur Jasinski (grafix(AT)csl.pl), Nov 19 2006
|
| |
|
|
