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A174987
Start with n, iterate the map k -> A167507(k) until we reach 3, 4, 5 or 6; a(n) = which of 3, 4, 5 or 6 we reach first.
1
4, 4, 4, 3, 4, 5, 6, 4, 4, 4, 3, 4, 5, 6, 4, 6, 5, 4, 4, 4, 5, 4, 4, 3, 4, 4, 4, 4, 4, 4, 6, 3, 3, 4, 5, 3, 4, 3, 3, 3, 4, 5, 5, 6, 4, 5, 4, 5, 5, 5, 4, 6, 6, 4, 6, 6, 5, 6, 6, 6, 4, 5, 5, 6, 4, 5, 4, 5, 5, 5, 4, 4, 6, 4, 5, 4, 6, 6, 6, 6, 5, 6, 6, 5, 4, 6, 4, 6, 6, 6, 4, 6, 5, 4, 4, 4, 5, 4, 4, 4
OFFSET
1,1
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Jacques ALARDET, Apr 03 2010
EXTENSIONS
Edited by N. J. A. Sloane, Apr 05 2010
STATUS
approved