36340

Appears in sequences

• Number of -1..1 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four or six distinct values for every i,j,k<=n.at n=13A211528
• Number of partitioned trees decorated by {1,2} with n nodes.at n=6A226269
• Numbers k such that (58*10^k + 221)/9 is prime.at n=24A291661