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.

A195364 Number of partitions of n plus number of divisors of n.

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%I A195364 #12 Feb 16 2025 19:11:34
%S A195364 2,4,5,8,9,15,17,26,33,46,58,83,103,139,180,236,299,391,492,633,796,
%T A195364 1006,1257,1583,1961,2440,3014,3724,4567,5612,6844,8355,10147,12314,
%U A195364 14887,17986,21639,26019,31189,37346,44585,53182,63263,75181,89140,105562,124756
%N A195364 Number of partitions of n plus number of divisors of n.
%H A195364 Harvey P. Dale, <a href="/A195364/b195364.txt">Table of n, a(n) for n = 1..1000</a>
%F A195364 a(n) = p(n) + d(n) = A000041(n) + A000005(n).
%t A195364 Table[PartitionsP[n]+DivisorSigma[0,n],{n,50}] (* _Harvey P. Dale_, Feb 16 2025 *)
%o A195364 (PARI) al(n)=vector(n,k,numbpart(k)+numdiv(k))
%Y A195364 Cf. A000041, A000005, A144300.
%K A195364 nonn
%O A195364 1,1
%A A195364 _Franklin T. Adams-Watters_, Sep 16 2011