28487

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 31 ones.at n=6A031799
• Minimal peaks in digital expansions of Pi: positions of peaks equal to 1.at n=29A105275
• Averages of four consecutive cubes.at n=30A173965
• Number of binary arrays indicating the locations of trailing edge maxima of a random length-n 0..3 array extended with zeros and convolved with 1,2,2,1.at n=22A222106
• a(n) is the initial transient (converted to base 10), before the periodic part, on the n-th diagonal from the left of rule-30 1-D cellular automaton, when started from a single ON cell, or -1 if there is no transient part.at n=24A364241