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 A371245 #9 Jan 17 2025 11:54:38 %S A371245 1,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,2,1,1,1,1, %T A371245 2,2,1,1,1,2,1,2,1,1,2,1,1,2,2,2,1,1,1,2,2,2,1,1,1,3,1,1,2,2,2,2,1,1, %U A371245 1,3,1,3,1,1,2,1,2,2,1,3,2,1,1,3,2,1,1,2,1,4,2,1 %N A371245 Number of factorizations of n into factors > 4. %H A371245 Antti Karttunen, <a href="/A371245/b371245.txt">Table of n, a(n) for n = 1..20000</a> %F A371245 Dirichlet g.f.: Product_{k>=5} 1 / (1 - k^(-s)). %e A371245 a(60) = 3: 60 = 5*12 = 6*10. %o A371245 (PARI) A371245(n, m=n) = if(1==n, 1, my(s=0); fordiv(n, d, if((d>4)&&(d<=m), s += A371245(n/d, d))); (s)); \\ _Antti Karttunen_, Jan 17 2025 %Y A371245 Cf. A001055, A017899, A185325, A371212, A371243, A371244. %K A371245 nonn %O A371245 1,25 %A A371245 _Ilya Gutkovskiy_, Mar 16 2024