89000

Appears in sequences

• Denominators of continued fraction convergents to sqrt(657).at n=17A042263
• Number of nonempty subsets of {1,2,...,n} in which exactly 3/4 of the elements are <= (n-3)/3.at n=34A048031
• a(n) = (8*sqrt(5)/25)((sqrt(5) + 2)((15 + 5*sqrt(5))/2)^n + (sqrt(5) - 2)((15 - 5*sqrt(5))/2)^n).at n=3A109105
• G.f. satisfies: A(x) = 1 + x*A(x) / ( A(I*x)*A(-I*x) ).at n=29A216683
• G.f. satisfies: A(x) = 1 + x*A(x) / ( A(I*x)*A(-I*x) ).at n=30A216683
• Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 01010101 or 01010111.at n=4A260130
• Number of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 01010101 or 01010111.at n=4A260135
• T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 01010101 or 01010111.at n=40A260138
• Numbers n = d_0d_1...d_n (n < 10) such that d_i is the number of digits equal to i in n (base b), where b is less than 10.at n=5A260387