20732

Appears in sequences

• a(n) = 12^n - n.at n=4A024141
• Number of 3 X 3 integer matrices with elements in the range [ -n,n ] which represent a three-fold rotation.at n=3A053172
• Greatest number m such that the fractional part of (Pi-2)^A153717(n) <= 1/m.at n=13A153721
• a(n) = 16*n^2 - 4.at n=35A158443
• a(n) = n*prime(prime(n)) - prime(n)^2.at n=50A230098
• Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=1A238050
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the minimum minus the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=4A238054
• Number of nX3 0..1 arrays with every element unequal to 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.at n=8A304014