|
Search: id:A022150
|
|
|
| A022150 |
|
Coordination sequence for root lattice B_8. |
|
+0
4
|
|
| 1, 128, 3264, 34624, 216448, 954880, 3301952, 9556160, 24165120, 54993792, 115021760, 224533056, 413862016, 726758656, 1224437056, 1990370240, 3135895040, 4806690432, 7190192832, 10524011840
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
REFERENCES
|
R. Bacher, P. de la Harpe and B. Venkov, Series de croissance et series d'Ehrhart associees aux reseaux de racines, C. R. Acad. Sci. Paris, 325 (Series 1) (1997), 1137-1142.
|
|
FORMULA
|
a(0) = 1; for n>0, a(n) = (3968*n^7 - 6720*n^6 + 35840*n^5 - 36960*n^4 + 60032*n^3 - 26880*n^2 + 11040*n)/315 . - DELEHAM Philippe (kolotoko(AT)wanadoo.fr), Feb 20 2004
|
|
CROSSREFS
|
Sequence in context: A096961 A019564 A128802 this_sequence A008791 A013700 A035817
Adjacent sequences: A022147 A022148 A022149 this_sequence A022151 A022152 A022153
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
mbaake(AT)sunelc3.tphys.physik.uni-tuebingen.de (Michael Baake)
|
|
|
Search completed in 0.002 seconds
|
