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Triangle read by rows, in which row n consists of first n terms of A054541.
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%I #13 Dec 27 2021 10:57:13

%S 2,2,1,2,1,2,2,1,2,2,2,1,2,2,4,2,1,2,2,4,2,2,1,2,2,4,2,4,2,1,2,2,4,2,

%T 4,2,2,1,2,2,4,2,4,2,4,2,1,2,2,4,2,4,2,4,6,2,1,2,2,4,2,4,2,4,6,2,2,1,

%U 2,2,4,2,4,2,4,6,2,6,2,1,2,2,4,2,4,2,4,6,2,6,4

%N Triangle read by rows, in which row n consists of first n terms of A054541.

%C Rows tend to A054541: (2, 1, 2, 2, 4, 2, 4, ...)

%e prime(5) = 2 + 1 + 2 + 2 + 4 = 11.

%e From _Omar E. Pol_, Dec 23 2021: (Start)

%e Triangle begins:

%e 2;

%e 2, 1;

%e 2, 1, 2;

%e 2, 1, 2, 2;

%e 2, 1, 2, 2, 4;

%e 2, 1, 2, 2, 4, 2;

%e 2, 1, 2, 2, 4, 2, 4;

%e 2, 1, 2, 2, 4, 2, 4, 2;

%e 2, 1, 2, 2, 4, 2, 4, 2, 4;

%e 2, 1, 2, 2, 4, 2, 4, 2, 4, 6;

%e 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2;

%e 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 6;

%e 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 6, 4;

%e ... (End)

%Y Row sums give A000040.

%Y Cf. A054541, A001223.

%K nonn,tabl,easy

%O 1,1

%A _Gary W. Adamson_, Jan 14 2007

%E Edited by _N. J. A. Sloane_, Jan 27 2007

%E More terms from _Omar E. Pol_, Feb 21 2014