266761

Appears in sequences

• Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,1.at n=6A033126
• The first of nine consecutive positive integers the sum of the squares of which is equal to the sum of the squares of ten consecutive positive integers.at n=2A262141
• Number of Dyck paths of semilength n such that the number of peaks is strongly decreasing from lower to higher levels.at n=17A288141