1936935

Appears in sequences

• Integers that can be expressed as a product of triangular numbers in 3 different ways.at n=20A110904
• Number of tree-rooted maps of genus 2 with n edges: rooted maps with a distinguished spanning tree on an orientable surface of genus 2.at n=3A118446
• Least k with precisely n partitions k = x + y satisfying x > 0 and k' = x' + y', where k', x', y' are the arithmetic derivatives of k, x, y.at n=23A212664
• Numbers n such that numerator(sigma(n)/n) = reverse(denominator(sigma(n)/n)).at n=8A259398