221433
domain: N
Appears in sequences
- Numbers k such that A081249(m)/m^2 has a local minimum for m = k.at n=11A081250
- a(n) = 2*a(n-1) + 3*a(n-2), with a(0) = 2 and a(1) = 3.at n=11A135522
- Number of -5..5 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=5A202003
- 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=50A202006
- 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=4A202010
- a(n) = a(n-1) + 2*a(n-2) - 2*a(n-3) + 3*a(n-4) - 3*a(n-5), where a(0) = 1, a(1) = 3, a(2) = 6, a(3) = 11, a(4) = 20, a(5) = 33.at n=21A297443
- a(n) = a(n-1) + 9*a(n-2) - 9*a(n-3), where a(0) = 1, a(1) = 3, a(2) = 6, a(3) = 33.at n=11A297444