OFFSET
1,3
COMMENTS
LINKS
Paolo P. Lava, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = a(a(a(a(a(n -a(n-1)))))) + a(n-a(n-2)) with a(1) = a(2) = 1.
MATHEMATICA
a[n_]:= a[n]= If[n<3, 1, a[a[a[a[a[n - a[n-1]]]]]] + a[n - a[n-2]]];
Table[a[n], {n, 90}]
PROG
(Sage)
@CachedFunction
def a(n): return 1 if (n<3) else a(a(a(a(a(n -a(n-1)))))) + a(n-a(n-2));
[a(n) for n in (1..90)] # G. C. Greubel, Sep 11 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Roger L. Bagula, May 30 2005
EXTENSIONS
Edited by N. J. A. Sloane, Jun 15 2007
STATUS
approved