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k appears A278045(k)+1 times.
3

%I #11 Mar 09 2019 14:27:14

%S 1,2,2,3,4,4,4,5,6,6,7,7,7,7,8,9,9,10,11,11,11,1,13,13,13,13,14,15,15,

%T 16,17,17,17,18,189,19,20,20,20,20,21,22,22,23,24,24,24,24,24,24,25,

%U 26,26,27,28,28,28,29,30,30

%N k appears A278045(k)+1 times.

%C Each k appears one more times than the number of trailing zeros in the tribonacci representation of n (see A278038).

%C This is related to the tribonacci representation of n in the same way as A046699 (without its initial term) is related to the binary representation of n and as A316628 is to the Zeckendorf representation of n.

%H Nathan Fox, <a href="https://vimeo.com/322291024">Trees, Fibonacci Numbers, and Nested Recurrences</a>, Rutgers University Experimental Math Seminar, Mar 07, 2019

%Y Cf. A046699, A278038, A278045, A316628.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Mar 07 2019