%I #8 Dec 10 2014 02:51:13
%S 1,3,6,14,19,55,62,126,153,253,264,1992,2005,2201,2426,3450,3467,9299,
%T 9318,17318,17759,18243,18266,350042,350167,350843,351572,373524,
%U 373553,1183553,1183584,1216352,1217441,1218597,1219822,11297518,11297555,11298999,11300520
%N a(n) = Sum_{k<=n} A007955(k), where A007955(m) = product of divisors of m.
%e For n = 4, with b(n) = A007955(n), a(4) = b(1)+b(2)+b(3)+b(4) = 1+2+3+8 = 14.
%o (PARI) prd(n) = my(dn = divisors(n)); prod(i=1, #dn, dn[i]);
%o a(n) = sum(k=1, n, prd(k)); \\ _Michel Marcus_, Dec 09 2014
%Y Cf. A007955.
%K nonn
%O 1,2
%A _Jaroslav Krizek_, Apr 01 2010
%E Edited and more terms from _Michel Marcus_, Dec 09 2014
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