|
| |
|
|
A198343
|
|
Divisors of 196560.
|
|
2
|
|
|
|
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 54, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 108, 112, 117, 120, 126, 130, 135, 140, 144, 156, 168, 180, 182, 189, 195, 208, 210, 216, 234, 240, 252, 260, 270, 273, 280, 312, 315, 336, 351, 360, 364, 378, 390, 420, 432, 455
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
196560 is the kissing number of the Leech lattice (cf. A008408). It is a famous number in the "Moonshine" investigations.
|
|
|
REFERENCES
|
Bannai, Eiichi and Sloane, N. J. A., Uniqueness of certain spherical codes. Canad. J. Math. 33 (1981), no. 2, 437-449.
Conway, J. H. and Norton, S. P. Monstrous moonshine. Bull. London Math. Soc. 11 (1979), no. 3, 308-339.
Odlyzko, A. M. and Sloane, N. J. A., New bounds on the number of unit spheres that can touch a unit sphere in n dimensions. J. Combin. Theory Ser. A 26 (1979), no. 2, 210-214.
Thompson, J. G., Some numerology between the Fischer-Griess Monster and the elliptic modular function. Bull. London Math. Soc. 11 (1979), no. 3, 352-353.
|
|
|
LINKS
|
N. J. A. Sloane, Table of n, a(n) for n = 1..160
Index entries for sequences related to divisors of numbers
|
|
|
PROG
|
(PARI) divisors(196560) \\ Charles R Greathouse IV, Feb 21 2013
|
|
|
CROSSREFS
|
Cf. A008408.
Sequence in context: A171987 A072226 A074402 * A094270 A125705 A154314
Adjacent sequences: A198340 A198341 A198342 * A198344 A198345 A198346
|
|
|
KEYWORD
|
nonn,fini,full
|
|
|
AUTHOR
|
N. J. A. Sloane, Oct 23 2011, following a suggestion from Mark A. Thomas.
|
|
|
STATUS
|
approved
|
| |
|
|
