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A218271
a(n) = a(n-1)^a(n-2) + a(n-3) with a(0) = a(1) = a(2) = 1.
3
1, 1, 1, 2, 3, 10, 1002, 1020180963368077455371525121027
OFFSET
0,4
COMMENTS
a(8) has over 30000 digits.
EXAMPLE
a(3) = a(2)^a(1) + a(0) = 1^1+1 = 1+1 = 2.
MATHEMATICA
t = {1, 1, 1}; Do[AppendTo[t, t[[-1]]^t[[-2]] + t[[-3]]], {5}]; t (* T. D. Noe, Oct 29 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Nico Brown, Oct 24 2012
STATUS
approved