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Triangular array whose rows are successive generations of the Kolakoski sequence A000002.
5

%I #8 Apr 04 2020 04:53:02

%S 1,1,2,1,2,2,1,1,2,2,1,1,2,1,1,2,2,1,1,2,1,2,2,1,2,1,2,2,1,1,2,1,2,2,

%T 1,2,2,1,1,2,1,1,2,1,2,2,1,1,2,1,2,2,1,2,2,1,1,2,1,1,2,2,1,2,1,1,2,1,

%U 2,2,1,1,2,2,1,1,2,1,2,2,1,2,2,1,1,2,1,1,2,2,1,2,1,1,2,1,2,2,1,1,2,1,1,2,1,2,2,1,2,2,1,1,2,1

%N Triangular array whose rows are successive generations of the Kolakoski sequence A000002.

%e Triangle begins:

%e 1;

%e 1, 2;

%e 1, 2, 2, 1;

%e 1, 2, 2, 1, 1, 2, 1;

%e 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2;

%e 1, 2, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2;

%e ...

%Y Cf. A000002, A054348, A054349, A054350, A054351, A054352.

%Y Row lengths give A054352.

%K nonn,tabf,easy

%O 0,3

%A _N. J. A. Sloane_, May 07 2000

%E More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 05 2003