OFFSET
1,1
COMMENTS
LINKS
Eric F. O'Brien, Table of n, a(n) for n = 1..9592
EXAMPLE
a(1) = 10^10 \ 2 - 1.
a(2) = 10^10 \ 3 - 10^10 \ (2*3) - 1.
a(3) = 10^10 \ 5 - 10^10 \ (2*5) - 10^10 \ (3*5) + 10^10 \ (2*3*5) - 1.
a(4) = 10^10 \ 7 - 10^10 \ (2*7) - 10^10 \ (3*7) - 10^10 \ (5*7) + 10^10 \ (2*3*7) + 10^10 \ (2*5*7) + 10^10 \ (3*5*7) - 10^10 \ (2*3*5*7) - 1.
CROSSREFS
KEYWORD
nonn,fini
AUTHOR
Eric F. O'Brien, Jul 31 2013
STATUS
approved