OFFSET
1,1
COMMENTS
It is an absolute abnormal number, that is abnormal for all bases. It is also a Liouville number and therefore transcendental.
LINKS
G. Martin, Absolutely Abnormal Numbers, Amer. Math. Monthly 108 (2001), no. 8, 746-754.
FORMULA
Equals Product_{n>=2} (1 - 1/A220189(n)).
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Michel Marcus, Dec 07 2012
STATUS
approved