|
| |
|
|
A101381
|
|
n^2*(n+1)^2*(4*n^2-5*n+4)/12.
|
|
1
| |
|
|
0, 1, 30, 300, 1600, 5925, 17346, 43120, 95040, 191025, 356950, 628716, 1054560, 1697605, 2638650, 3979200, 5844736, 8388225, 11793870, 16281100, 22108800, 29579781, 39045490, 50910960, 65640000, 83760625, 105870726, 132643980, 164836000, 203290725, 248947050
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,3
|
|
|
REFERENCES
| T. A. Gulliver, Sequences from Cubes of Integers, Int. Math. Journal, 4 (2003), 439-445.
|
|
|
LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index to sequences with linear recurrences with constant coefficients, signature (7,-21,35,-35,21,-7,1)
|
|
|
FORMULA
| G.f. x*(1+23*x+111*x^2+95*x^3+10*x^4) / (1-x)^7 . - R. J. Mathar, Jun 15 2011
|
|
|
PROG
| (MAGMA) [n^2*(n+1)^2*(4*n^2-5*n+4)/12: n in [0..40]]; // Vincenzo Librandi, Jun 15 2011
|
|
|
CROSSREFS
| Sequence in context: A163667 A113754 A129029 * A061605 A125393 A126551
Adjacent sequences: A101378 A101379 A101380 * A101382 A101383 A101384
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 15 2005
|
| |
|
|
