1696396

Appears in sequences

• a(n) = C(n)*(10*n + 1) where C(n) = Catalan numbers (A000108).at n=10A050489
• a(n) = (9*n + 11)*binomial(n+10, 10)/11.at n=10A056128
• a(0) = 0; a(n) = C(2*n-2,n-1)*(n^2-2*n+2)/n for n >= 1.at n=11A180266