86622

Appears in sequences

• Numerators of continued fraction convergents to sqrt(669).at n=9A042286
• Numbers k such that k has nonincreasing digits and the k-th prime has nondecreasing digits.at n=52A116069
• Number of n X 3 binary arrays with some element plus some horizontally, vertically, diagonally or antidiagonally adjacent neighbor totalling two exactly once.at n=8A268761
• G.f. satisfies: A(x) = Sum_{n>=0} x^n * (1 + x*A(x)^(n+1))^n.at n=10A300042