66356

Appears in sequences

• Triangle read by rows: T(n,k) is the number of paths in the first quadrant from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k doublerises (i.e., UU's) (0 <= k <= floor(n/2) - 1 for n >= 2).at n=39A132279
• Expansion of (4*x^3-6*x^2+4*x-1)/(5*x^3-8*x^2+5*x-1).at n=12A243633
• Numbers that are the sum of seven fourth powers in exactly ten ways.at n=26A345832