98064
domain: N
Appears in sequences
- Expansion of e.g.f. cosh(sin(log(1+x))).at n=9A009141
- This sequence needs a meaningful name.at n=10A121796
- a(n) is the smallest number m such that sigma(m)=n*pi(m), or 0 if no such m exists.at n=28A137602
- Expansion of g.f.: 1/((1 - x - x^2 + x^6 - x^8)*(1 - x^2 + x^6 + x^7 - x^8)).at n=25A147620
- Number of length-n sequences A over {1,2,3} with the property that all of r(A), r(r(A)), etc. are over {1,2,3}, where r is the sequence obtained by taking the run lengths in A.at n=12A181047
- a(n) = n! * Sum_{k=0..n} binomial(2*n, 2*k) / binomial(n,k).at n=6A182525
- E.g.f. satisfies A(x) = log(1 + x * exp(A(x))) * exp(A(x)).at n=6A357349