OFFSET
0,1
LINKS
Chris R. Rehmann, Table of n, a(n) for n = 0..10000
FORMULA
Tersum m + n: write m and n in base 3 and add mod 3 with no carries; e.g., 5 + 8 = "21" + "22" = "10" = 1.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved
