OFFSET
1,3
EXAMPLE
a(8) = 1^7 + 3^5 + 5^3 + 7^1 = 376, since 1, 3, 5 and 7 are the positive integers relatively prime to 8 and <= 8.
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Nov 04 2000
STATUS
approved