OFFSET
1,55
COMMENTS
For any hypothetical odd perfect number x, a(x) = 1.
The first occurrence of k = 0 .. 5 is at n = 0, 9, 55, 935, 102753, 262205.
LINKS
EXAMPLE
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Aug 28 2021
STATUS
approved