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A004498 Tersum n + 9. +0
1
9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 0, 1, 2, 3, 4, 5, 6, 7, 8, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 27, 28, 29, 30, 31, 32, 33, 34, 35, 63, 64, 65, 66 (list; graph; listen)
OFFSET

0,1

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

Sequence in context: A096166 A078548 A095777 this_sequence A020723 A107043 A023392

Adjacent sequences: A004495 A004496 A004497 this_sequence A004499 A004500 A004501

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 4 12:48 EST 2009. Contains 170310 sequences.


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