89028

Appears in sequences

• Number of (n+4) X 6 binary arrays with every 5 X 5 subblock commuting with each horizontal and vertical neighbor 5 X 5 subblock.at n=15A186602
• Sequence is defined by the condition that Sum_{d|n} a(d)^(n/d) = 1 if n=1, = 0 if n>1.at n=47A260685
• A260685(4n).at n=11A264609
• Least number x such that x^n has n digits equal to k. Case k=4.at n=32A285451