890077

Appears in sequences

• Expansion of (1-x)/((1-2x)(1-4x+x^2)).at n=10A216271
• Number of length 3+3 0..n arrays with every four consecutive terms having the maximum of some two terms equal to the minimum of the remaining two terms.at n=21A249709
• Expansion of (1 - x)^4/((1 - x)^6 + x^6).at n=22A307089