127270

Appears in sequences

• Number of permutations in S_n with a certain property.at n=18A013498
• a(n) = C(n)*(11n+1) where C(n) = Catalan numbers (A000108).at n=8A050490
• Expansion of (1+8*x)/(1-x)^9.at n=9A056117
• Higher dimensional figurate numbers based on 12-gonal numbers A051624.at n=8A093646
• One sixth of the unitary sociable numbers.at n=9A097323
• Expansion of -1/(2*x) + (2*x-1)^2/(2*x*(1-4x)^(3/2)).at n=8A141222