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a(n) = A030124(n) - n.
4

%I #11 Mar 24 2020 00:24:47

%S 1,2,2,2,3,3,3,3,4,4,4,4,4,5,5,5,5,5,5,5,6,6,6,6,6,6,6,6,7,7,7,7,7,7,

%T 7,7,7,8,8,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9,9,9,9,10,10,10,10,10,10,

%U 10,10,10

%N a(n) = A030124(n) - n.

%C Used by _Benoit Jubin_ in his analysis of A005228 and A030124.

%C Are run lengths given by A081688? Equivalently, does n appear A081688(n) times? - _Peter Kagey_, Mar 20 2020

%H Peter Kagey, <a href="/A225687/b225687.txt">Table of n, a(n) for n = 1..10000</a>

%Y Cf. A030124, A005228, A081688.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, May 24 2013