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.
%I A023035 #24 Sep 08 2022 08:44:47 %S A023035 1,10,55,220,715,2002,5005,11440,24310,48620,92377,167960,293920, %T A023035 497420,817135,1307504,2042755,3124550,4686110,6906900,10013002, %U A023035 14307150,20155070,28048790,38555660,52451256,70583095,94143280,124355000 %N A023035 Number of compositions of n into 10 ordered relatively prime parts. %H A023035 Marius A. Burtea, <a href="/A023035/b023035.txt">Table of n, a(n) for n = 10..5000</a> %H A023035 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %F A023035 Moebius transform of C(n-1,9). %F A023035 G.f.: Sum_{k>=1} mu(k) * x^(10*k) / (1 - x^k)^10. - _Ilya Gutkovskiy_, Feb 05 2020 %p A023035 with(numtheory): %p A023035 a:= n-> add(mobius(n/d)*binomial(d-1, 9), d=divisors(n)): %p A023035 seq(a(n), n=10..50); # _Alois P. Heinz_, Feb 05 2020 %t A023035 a[n_]:=Sum[Boole[Divisible[n, k]] MoebiusMu[n/k] Binomial[k -1, 9], {k, 1, n}]; Table[a[n], {n, 10, 45}] (* or *) Table[a[n],{n, 9, 45}] a[n_]:=DivisorSum[n, Binomial[#-1,9] MoebiusMu[n/#]&]; Array[a, 37, 10] (* _Vincenzo Librandi_, Feb 08 2020 *) %o A023035 (Magma) [&+[MoebiusMu(n div d)*Binomial(d-1, 9):d in Divisors(n)]:n in[10..42]]; // _Marius A. Burtea_, Feb 07 2020 %Y A023035 Cf. A000741, A000742, A000743, A023031, A023032, A023033, A023034. %Y A023035 Cf. A023023, A023024, A023025, A023026, A023027, A023028, A023029, A023030. %K A023035 nonn %O A023035 10,2 %A A023035 _David W. Wilson_