35643

Appears in sequences

• 3p^2 where p runs through the primes.at n=28A079705
• Triangle T read by rows: matrix product of Pascal and Catalan triangle.at n=47A104259
• Riordan array (1, (1/(1-x))c(x/(1-x))), c(x) the g.f. of A000108.at n=58A155887
• Number of -3..3 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 one, two, three, four, five, six or seven distinct values for every i,j,k<=n.at n=4A211747
• Number of idempotent 3X3 -n..n matrices of rank 1.at n=14A221312
• 3*h^2, where h is an odd integer not divisible by 3.at n=36A229852
• Numbers of the form p^2*q, with odd primes p > q, such that q divides p-1.at n=21A350638