3690241

Appears in sequences

• Number of n X 5 arrays with every diagonal and antidiagonal of length L containing a permutation of 1..L.at n=7A179810
• Square numbers with at least one digit in common with any other square number.at n=13A182658
• Number of n X 3 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=31A207118
• a(n) = (1-2*n^2)^2.at n=31A239607
• Sin(arcsin(n)- 3 arccos(n))^2.at n=4A239609
• Expansion of g.f.: 1 / AGM(1-9*x, sqrt((1-x)*(1-81*x))).at n=4A246923