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Partial sums of A207034.
5

%I #17 Apr 11 2012 13:06:11

%S 0,1,3,5,8,11,15,18,22,26,31,35,40,45,51,55,60,65,71,77,83,90,95,101,

%T 107,114,120,127,134,142,147,153,159,166,173,180,188,195,203,211,219,

%U 228,234,241,248,256,263,271,279,288,296,304,313,322,331,341

%N Partial sums of A207034.

%H Alois P. Heinz, <a href="/A207038/b207038.txt">Table of n, a(n) for n = 1..1000</a>

%e Written as a triangle:

%e 0;

%e 1;

%e 3;

%e 5,8;

%e 11,15;

%e 18,22,26,31;

%e 35,40,45,51;

%e 55,60,65,71,77,83,90;

%e 95,101,107,114,120,127,134,142;

%e 147,153,159,166,173,180,188,195,203,211,219,228;

%e 234,241,248,256,263,271,279,288,296,304,313,322,331,341;

%Y Row n has length A187219(n). Right border gives A196087.

%Y Cf. A006128, A135010, A138121, A194548, A207035.

%K nonn,tabf

%O 1,3

%A _Omar E. Pol_, Feb 21 2012