|
Search: id:A128778
|
|
|
| A128778 |
|
a(n) = numerator of product{k=1 to n} (1 +{n/k}), where {x} is the fractional part of x, {x} = x - floor(x). |
|
+0
2
|
|
| 1, 1, 3, 4, 25, 9, 343, 256, 6561, 1250, 161051, 1728, 4826809, 235298, 11390625, 134217728, 6975757441, 14348907, 322687697779, 4000000000, 264760015527, 207499396808, 952809757913927, 220150628352, 11920928955078125
(list; graph; listen)
|
|
|
OFFSET
|
1,3
|
|
|
LINKS
|
Leroy Quet, Home Page (listed in lieu of email address)
|
|
MAPLE
|
a:=n->numer(product(1+frac(n/k), k=1..n)): seq(a(n), n=1..30); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 31 2007
|
|
CROSSREFS
|
Cf. A128779.
Sequence in context: A065900 A065809 A093600 this_sequence A009391 A055348 A004206
Adjacent sequences: A128775 A128776 A128777 this_sequence A128779 A128780 A128781
|
|
KEYWORD
|
frac,nonn
|
|
AUTHOR
|
Leroy Quet Mar 27 2007
|
|
EXTENSIONS
|
More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 31 2007
|
|
|
Search completed in 0.002 seconds
|
