61085

Appears in sequences

• Number of nX1 0..n+1-2 arrays with upper left zero and lower right n+1-2 and each element differing from its horizontal and vertical neighbors by one or two.at n=12A265440
• Least number x such that x^n has n digits equal to k. Case k = 1.at n=36A285448
• a(1) = 1; if a(n) is not divisible by 3, a(n+1) = 4*a(n) + 1, otherwise a(n+1) = a(n)/3.at n=31A346035