109515

Appears in sequences

• Denominators of continued fraction convergents to sqrt(219).at n=11A041409
• Denominators of continued fraction convergents to sqrt(876).at n=11A042693
• The difference between the two largest distinct parts of a partition (0 if no distinct parts), summed over all partitions of n.at n=36A268191
• Numbers of squares formed by this procedure on n-th step: Step 1, draw a unit square. Step n, draw a unit square with center in every intersection of lines of the figure in step n-1.at n=34A336288