47384

Appears in sequences

• a(n) = Sum_{i=0..n} Sum_{j=0..i} T(i,j), T given by A026519.at n=12A026533
• Total number of largest parts in all compositions of n.at n=15A097979
• a(n) = Sum_{r < n, gcd(r,n)=1} n!/r!.at n=7A110377
• a(n) = 6^n + 3^n - 1.at n=6A155604
• Number of increasing odd cycles in all permutations of {1,2,...,n}.at n=8A186763
• G.f. satisfies: A(x) = 1/(1-x) - 1/(1-x*A(x)) + 1/(1-x*A(x)^2).at n=9A196018
• n such that A205592(n) > n.at n=27A205594
• Triangle read by rows: T(n,k) = logarithmic polynomial A_k^(n)(x) evaluated at x=-1.at n=37A260325
• Numbers k such that the sums (with multiplicity) of prime factors of k and k+1 are both squares.at n=41A359445