cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A185960 Positive numbers equal to the sum of the cubes of their first k divisors for some k.

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%I A185960 #15 Jan 21 2014 22:54:22
%S A185960 1,36,126144,236736,934902,3447632,11877300,67885860,163704304,
%T A185960 1317560094,1483434161,5178258504,8025266717,12097787616,16631037162,
%U A185960 25248156920,110341933344,145437730020,718690577744
%N A185960 Positive numbers equal to the sum of the cubes of their first k divisors for some k.
%C A185960 2665757000703, 18382539143800, 21465141915672, 34176701510281, 44733530333520 and 82841336110520 are also terms. - _Donovan Johnson_, Jan 21 2014
%D A185960 Arie Groeneveld, Posting to Sequence Fans Mailing List, Feb 06, 2011
%o A185960 (PARI) for(n=1, 67885860, nd=numdiv(n); if(nd<>2, d=divisors(n); s=0; for(j=1, nd, s=s+d[j]^3; if(s>=n, if(s==n, print1(n ", ")); next(2))))) \\ _Donovan Johnson_, Jan 21 2014
%Y A185960 Cf. A185584, A185961.
%K A185960 nonn,more
%O A185960 1,2
%A A185960 _N. J. A. Sloane_, Feb 07 2011
%E A185960 a(7)-a(13) from _Donovan Johnson_, Feb 07 2011
%E A185960 a(14)-a(17) from _Donovan Johnson_, Feb 08 2011
%E A185960 a(18)-a(19) from _Donovan Johnson_, Jan 21 2014