119154

Appears in sequences

• Riordan array (1/sqrt(1-6x+5x^2),(1-3x-sqrt(1-6x+5x^2))/(2x)).at n=48A110165
• a(n) = Sum_{k=0..n} binomial(n+3,k+3) * binomial(2*k+6,k+6).at n=6A387239