|
| |
|
|
A139241
|
|
Second differences of Mersenne numbers A001348.
|
|
3
|
| |
|
|
|
OFFSET
|
1,1
|
|
|
LINKS
|
Table of n, a(n) for n=1..8.
|
|
|
CROSSREFS
|
Cf. A001348, A139230, A139232, A139236, A139238, A139242, A139243.
Sequence in context: A052516 A083873 A143854 * A139232 A002292 A225923
Adjacent sequences: A139238 A139239 A139240 * A139242 A139243 A139244
|
|
|
KEYWORD
|
easy,nonn
|
|
|
AUTHOR
|
Omar E. Pol, Apr 19 2008
|
|
|
STATUS
|
approved
|
| |
|
|
