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First differences of A100143.
3

%I #6 Aug 28 2013 04:46:02

%S 1,2,2,4,4,4,4,6,6,6,6,6,6,10,10,10,10,10,10,10,10,10,10,14,14,14,14,

%T 14,14,14,14,14,14,14,14,14,14,18,18,18,18,18,18,18,18,18,18,18,18,18,

%U 18,18,18,18,18,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22

%N First differences of A100143.

%C Each term a(n) occurs a(n) times consecutively. If duplicate terms are removed, this sequence is equivalent to A100143.

%C The position where values change, but also the second partial sums are in A100250. - _Ralf Stephan_, Aug 28 2013

%Y Cf. A100143, A005041.

%K nonn

%O 1,2

%A _Rick L. Shepherd_, Nov 09 2004