169840

Appears in sequences

• T(n,n-1), array T as in A047120.at n=10A047123
• Expansion of polynomial N_5 in Formula (10) in the reference.at n=5A145107
• Expansion of polynomial N_5 in Formula (10) in the reference.at n=39A145107
• Number of (w,x,y,z) with all terms in {0,...,n} and max{w,x,y,z}>2*min{w,x,y,z}.at n=20A212743
• Number of (n+2)X(1+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.at n=0A233796
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.at n=0A233801
• Number of (1+2)X(n+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically or antidiagonally downwards.at n=0A233802
• p-INVERT of (0,1,0,1,0,1,...), where p(S) = (1 - S)^5.at n=13A291225
• Trajectory of 270 under repeated application of k -> (phi(k)+sigma(k))/2.at n=23A291789