|
|
A262926
|
|
Sum of n consecutive n-th powers starting with n^n.
|
|
1
|
|
|
0, 1, 31, 3408, 873580, 405071029, 295716738515, 312086923732368, 449317984129326216, 846136323944158864793, 2018612200059553898143707, 5949463230586042065279268128, 21227845340442717633531647231668, 90172805592203250075964230466892813
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
EXAMPLE
|
a(3) = 3^3 + 4^4 + 5^5 = 3408.
|
|
MATHEMATICA
|
|
|
PROG
|
(PARI) vector(20, n, n--; sum(k=n, 2*n-1, k^k))
(Sage) [sum(k^k for k in (n..2*n-1)) for n in (0..20)] # Bruno Berselli, Oct 05 2015
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|