105024

Appears in sequences

• Number of rooted maps with n edges on the projective plane.at n=5A007137
• Partial sums of A001935; at one time this was conjectured to agree with A007478.at n=46A014605
• Triangle, read by rows, where row n lists the coefficients of x^k, k=1..2^n, in the n-th iteration of (x + x^2) for n>=0.at n=43A122888
• Triangle (read by rows) of coefficients of the polynomials (in ascending order) of the denominators of the generalized sequence s(n) of the sum resp. product of generalized fractions f(n) defined recursively by f(1) = m/1; f(n+1) is chosen so that the sum and the product of the first n terms of the sequence are equal.at n=50A225201
• Triangle read by rows: T(n,k) = number of rooted maps with n edges on a nonorientable surface of genus k (1 <= k <= n).at n=15A267180
• Number of rooted maps of genus 1/2 with n edges.at n=5A361137