193437
domain: N
Appears in sequences
- Number of length n+5 0..4 arrays with every six consecutive terms having the maximum of some three terms equal to the minimum of the remaining three terms.at n=3A250332
- T(n,k)=Number of length n+5 0..k arrays with every six consecutive terms having the maximum of some three terms equal to the minimum of the remaining three terms.at n=24A250336
- Number of length 4+5 0..n arrays with every six consecutive terms having the maximum of some three terms equal to the minimum of the remaining three terms.at n=3A250340
- a(n) = Sum_{1 <= x_1 <= x_2 <= x_3 <= x_4 <= n} gcd(x_1, x_2, x_3 , x_4, n).at n=43A343518