118255

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 55 ones.at n=17A031823
• Number of magic labelings of the Petersen graph with magic sum n.at n=18A125196
• a(n) is the smallest positive integer which can be represented as the sum of n distinct nonzero square pyramidal numbers in exactly n ways, or -1 if no such integer exists.at n=30A360218