|
| |
|
|
A159354
|
|
Decimal expansion of 18-24*log(2)
|
|
0
| |
|
|
1, 3, 6, 4, 4, 6, 7, 6, 6, 6, 5, 6, 1, 3, 1, 2, 5, 7, 3, 9, 8, 6, 4, 2, 9, 0, 8, 5, 0, 0, 3, 7, 6, 2, 3, 6, 6, 1, 8, 7, 9, 9, 6, 7, 7, 5, 3, 5, 3, 8, 7, 3, 9, 0, 1, 1, 0, 3, 6, 7, 9, 7, 7, 2, 1, 5, 8, 5, 5, 3, 0, 7, 2, 7, 2, 7, 3
(list; constant; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| a(n) is the infinite serie sum for the Square Pyramidal Numbers reciprocals.
|
|
|
LINKS
| Barbarel Tres Mil, Square Pyramidal Numbers Reciprocals Sum, Psychedelic Geometry Blogspot
|
|
|
MATHEMATICA
| Sum[1/Sum[i^2, {i, 1, k}], {k, 1, Infinity}]
|
|
|
CROSSREFS
| A000292
Infinite sum of A000330 reciprocals. [From Barbarel Tres Mil (barbarel3000(AT)yahoo.es), Apr 25 2009]
Sequence in context: A105559 A090038 A006464 * A196500 A023676 A155530
Adjacent sequences: A159351 A159352 A159353 * A159355 A159356 A159357
|
|
|
KEYWORD
| cons,nonn
|
|
|
AUTHOR
| Barbarel Tres Mil (barbarel3000(AT)yahoo.es), Apr 11 2009
|
| |
|
|
