576708

Appears in sequences

• Invert transform of odd numbers: a(n) = Sum_{k=1..n} (2*k+1)*a(n-k), a(0)=1.at n=9A060801
• Inverse of Riordan array (1/(1-x)^2,x(1-x)/(1+x)), A104698.at n=55A110271