26096

Appears in sequences

• E.g.f. satisfies: A(x) = exp(x*A(((x+1)^9-1)/9)).at n=5A143640
• Number of consistent sets of 3 irreflexive binary order relationships over n objects.at n=5A147796
• Row sums of triangle defined in A113821.at n=36A160969
• 1-sequence of reduction of (n^2) by x^2 -> x+1.at n=11A192255
• a(n) = Fibonacci(n)*A000118(n) for n>=1 with a(0)=1, where A000118(n) is the number of ways of writing n as a sum of 4 squares.at n=13A205963
• G.f.: Product_{k>=1} 1/(1-x^k)^(3*k+1).at n=9A255271
• a(n) = 4*n*(n^2 - 3*n - 1)/3.at n=28A275876
• Numbers k >= 1 such that A018804(k) divided by A000203(k) is an integer.at n=18A349726