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%I #9 Mar 30 2012 16:51:57
%S 0,1,1,2,4,6,9,12,15,20,25,30,35,42,49,56,63,70,77,88,99,110,121,132,
%T 143,156,169,182,195,208,221,238,255,272,289,306,323,342,361,380,399,
%U 418,437,460,483,506,529,552,575,598,621,644,667,696,725,754,783,812,841,870,899,930,961,992,1023,1054,1085,1116,1147,1184,1221,1258,1295,1332,1369,1406,1443,1480,1517,1558,1599,1640
%N Partial sums of terms in A180101.
%C Apart from initial terms, same as A036441 and A076271, but the simple definition warrants an independent entry.
%H T. D. Noe, <a href="/A180107/b180107.txt">Table of n, a(n) for n = 0..10000</a>
%Y Cf. A180101, A036441, A076271.
%K nonn
%O 0,4
%A _N. J. A. Sloane_, Jan 16 2011
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