0,1
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.
Adjacent sequences: A004498 A004499 A004500 this_sequence A004502 A004503 A004504
Sequence in context: A020511 A008939 A004453 this_sequence A071955 A101594 A125290
nonn
njas
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