88683

Appears in sequences

• a(n) equals the coefficient of x^n in f(x)^n where f(x)=1+sum(n>=0,x^(2^n)).at n=11A088704
• Records for terms in the continued fraction of Soldner's constant.at n=14A099804
• Equals one maps: number of n X 3 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 n X 3 array.at n=7A220574
• Place two n-gons with radii 1 and 2 concentrically, forming an annular area between them. Connect all the vertices with line segments that lie entirely within that area. Then a(n) is the number of vertices in that figure.at n=38A337701