45504

Appears in sequences

• a(n) = 9*(n-2)^2 * (n^2 - 2*n - 1).at n=8A060788
• The Wiener index of the Dutch windmill graph D(6,n) (n>=1).at n=31A180578
• The Wiener index of the cyclic phenylene with n hexagons (n>=3).at n=13A224456
• Number of (n+1) X (2+1) 0..3 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=2A237953
• Number of (n+1)X(3+1) 0..3 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=1A237954
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=7A237956
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=8A237956
• Triangle read by rows: T(n,k) is the number of single loop solutions formed by n proper arches (connecting odd vertices to even vertices in the range 1 to 2n) above the x axis, k of which connect an odd vertex to a higher even vertex, with a rainbow of n arches below the x axis.at n=51A244312
• Numbers k such that 9*R_(k+2) - 7*10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=16A257037
• a(n) = (3*n+7)*n^2.at n=24A257042
• Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101.at n=6A260972
• Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00001001 or 00100101.at n=6A260979
• Number of multisets of exactly eight nonempty binary words with a total of n letters such that no word has a majority of 0's.at n=10A316409
• Number of 4 X 4 prime magic squares with magic sum 2n.at n=33A368676