|
| |
|
|
A138867
|
|
First two digits of n-th even superperfect number A061652(n).
|
|
4
|
|
|
|
2, 4, 16, 64, 40, 65, 26, 10, 11, 30, 81, 85, 34, 26, 52, 73, 22, 12, 95, 14, 23, 17, 14, 21, 22, 20, 42, 26, 26, 25, 37
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Also, first two digits of n-th superperfect number A019279(n), if there are no odd superperfect numbers.
|
|
|
LINKS
|
Table of n, a(n) for n=1..31.
|
|
|
CROSSREFS
|
Cf. A019279, A061652, A138862, A138868, A138869, A138873.
Sequence in context: A005027 A153969 A153966 * A138868 A138871 A001901
Adjacent sequences: A138864 A138865 A138866 * A138868 A138869 A138870
|
|
|
KEYWORD
|
base,more,nonn
|
|
|
AUTHOR
|
Omar E. Pol, Apr 02 2008
|
|
|
EXTENSIONS
|
Terms beyond a(12) from R. J. Mathar, Feb 05 2010
|
|
|
STATUS
|
approved
|
| |
|
|
