80065

Appears in sequences

• Number of -4..4 circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)).at n=5A202002
• T(n,k)=Number of -k..k circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2)).at n=41A202006
• Number of -n..n circular arrays x(0..7) of 8 elements with zero sums of x(i) and x(i)*x((i+1) mod 8).at n=3A202010
• G.f.: A(x) = exp( Sum_{n>=1} sigma(n)^(n-1) * x^n/n ).at n=7A224439
• Value of A121805(k) for k = A367358(n).at n=29A367359