OFFSET
2,7
COMMENTS
a(1969) is undefined, but otherwise a(n) is defined for all n >= 2 and < 4000000.
LINKS
J. Froemke and J. W. Grossman, A mod-n Ackermann function, or what's so special about 1969?, Amer. Math. Monthly, 100 (1993), 180-183.
J. W. Grossman, Home page
CROSSREFS
KEYWORD
nonn
AUTHOR
Jerrold Grossman, Apr 25 2004
STATUS
approved