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 A082391 Start with the sequence a(1 to 4) = "1,3,2,3". Then in step s, append "1", "1,2", or "1,2,3", whichever ends with a(s+2). 0
 1, 3, 2, 3, 1, 2, 1, 2, 3, 1, 1, 2, 1, 1, 2, 1, 2, 3, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 2, 3, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 2, 3, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 2, 3, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n)=3 just if n=(k^3+3*k^2-4*k+12)/6. LINKS CROSSREFS Sequence in context: A107335 A200223 A236228 * A283977 A248579 A296992 Adjacent sequences:  A082388 A082389 A082390 * A082392 A082393 A082394 KEYWORD nonn AUTHOR Benoit Cloitre, Apr 14 2003 EXTENSIONS Edited by Don Reble, Nov 02 2005 STATUS approved

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Last modified March 18 11:15 EDT 2019. Contains 321283 sequences. (Running on oeis4.)