The OEIS is looking to hire part-time people to help edit core sequences, upload scanned documents, process citations, fix broken links, etc. - Neil Sloane, firstname.lastname@example.org
Table of n, a(n) for n=0..57.
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.
Sequence in context: A133236 A038322 A090075 * A254716 A240757 A206422
Adjacent sequences: A004497 A004498 A004499 * A004501 A004502 A004503
N. J. A. Sloane.