OFFSET
1,1
COMMENTS
Last digit of all terms is 9.
The nest term (11^22420-2) is too large to be displayed; see A133982 for the corresponding k. - Joerg Arndt, Nov 28 2020
EXAMPLE
a(1) = 11^4 - 2 = 14639,
a(2) = 11^6 - 2 = 1771559.
CROSSREFS
KEYWORD
nonn,bref,hard
AUTHOR
Alexander Adamchuk, Sep 27 2007
STATUS
approved