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A089209 Table, read by rows, related to Catalan triangle A033184. 0

%I

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

%T 2,1,4,3,2,1,3,2,1,2,1,3,2,1,2,1,4,3,2,1,3,2,1,2,1,3,2,1,2,1,6,5,4,3,

%U 2,1,5,4,3,2,1,4,3,2,1,3,2,1,2,1,5,4,3,2,1,4,3,2,1,3,2,1,2,1,4,3,2,1,3,2,1

%N Table, read by rows, related to Catalan triangle A033184.

%C A033184(n,k) is the number of occurrences of k in the n-th row . There are A000108(n) numbers in the n-th row.

%F Let 1->21; 2->321; 3->4321; 4->54321; 5->654321; .... the table is defined by : row 1 :1; row 1->row 2 :2, 1; row 2->row 3 :3, 2, 1, 2, 1; row 3->row 4 :4, 3, 2, 1, 3, 2, 1, 2, 1, 3, 2, 1, 2, 1; ...row n->row n+1.

%Y Cf. A000108 A033184.

%K easy,nonn,tabl

%O 1,2

%A _Philippe Deléham_, Dec 21 2003

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Last modified May 25 17:53 EDT 2020. Contains 334595 sequences. (Running on oeis4.)