|
| |
|
|
A008513
|
|
Number of points on surface of 6-dimensional cube.
|
|
1
| |
|
|
0, 64, 728, 4032, 14896, 42560, 102024, 215488, 413792, 737856, 1240120, 1985984, 3055248, 4543552, 6563816, 9247680, 12746944, 17235008, 22908312, 29987776, 38720240, 49379904, 62269768
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..10000
Index to sequences with linear recurrences with constant coefficients, signature (6,-15,20,-15,6,-1).
|
|
|
FORMULA
| G.f.: 8*x*(8+43*x+78*x^2+43*x^3+8*x^4)/(x-1)^6 [Colin Barker, Jan 02 2012]
a(n) = 12n^5 + 40n^3 + 12n. [Charles R Greathouse IV, Jan 02 2012]
|
|
|
MAPLE
| (n+1)^6-(n-1)^6;
|
|
|
PROG
| (MAGMA) [(n+1)^6-(n-1)^6: n in [0..30]]; // Vincenzo Librandi, Aug 27 2011
(PARI) a(n)=n++^6-(n-2)^6 \\ Charles R Greathouse IV, Jan 02 2012
|
|
|
CROSSREFS
| Sequence in context: A136957 A187620 A119287 * A182673 A182674 A048392
Adjacent sequences: A008510 A008511 A008512 * A008514 A008515 A008516
|
|
|
KEYWORD
| nonn,easy
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
