|
| |
|
|
A039665
|
|
Sets of 4 consecutive numbers with equal number of divisors.
|
|
6
|
|
|
|
242, 243, 244, 245, 3655, 3656, 3657, 3658, 4503, 4504, 4505, 4506, 5943, 5944, 5945, 5946, 6853, 6854, 6855, 6856, 7256, 7257, 7258, 7259, 8392, 8393, 8394, 8395, 9367, 9368, 9369, 9370, 10983, 10984, 10985, 10986, 11605, 11606, 11607, 11608
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Taking the first entry in each set gives A006601.
|
|
|
REFERENCES
|
D. Wells, Curious and interesting numbers, Penguin Books, p. 134
|
|
|
LINKS
|
Table of n, a(n) for n=1..40.
|
|
|
CROSSREFS
|
Cf. A000005, A005237, A005238, A006601, A049051, A006558, A019273.
Sequence in context: A060110 A113468 A220089 * A259719 A023703 A184023
Adjacent sequences: A039662 A039663 A039664 * A039666 A039667 A039668
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
Felice Russo
|
|
|
EXTENSIONS
|
More terms from Patrick De Geest, Nov 15 1999
|
|
|
STATUS
|
approved
|
| |
|
|
