|
|
A124076
|
|
Numbers of the form Abs[m^m - n^n], where integers m,n>0.
|
|
0
|
|
|
0, 3, 23, 26, 229, 252, 255, 2869, 3098, 3121, 3124, 43531, 46400, 46629, 46652, 46655, 776887, 820418, 823287, 823516, 823539, 823542, 15953673, 16730560, 16774091, 16776960, 16777189, 16777212, 16777215, 370643273, 386596946
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Prime a(n) are listed in A068146(n) = {3, 23, 229, 3121, 776887, 16774091, 275311670611, ...}.
|
|
LINKS
|
|
|
MATHEMATICA
|
Take[Intersection[Flatten[Table[Abs[x^x-y^y], {x, 1, 12}, {y, 1, 12}]]], 50]
|
|
CROSSREFS
|
Cf. A066846 = Integers of the form m^m + n^n, m and n = positive integers. Cf. A068146 = Primes of the form a^a - b^b.
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|