100484

Appears in sequences

• a(n) = A061086(n) / n.at n=21A061087
• Numbers n with property that n sets a new record for the length of the preperiodic part of the 'Reverse and Subtract' trajectory of n.at n=11A072146
• a(n) = A083964(n)/(2n-1).at n=34A083965
• Number of (n+1) X 2 0..2 matrices with each 2 X 2 subblock idempotent.at n=18A224669