19658

Appears in sequences

• Number of convex polyominoes with a 3 X n+1 minimal bounding rectangle.at n=10A093119
• a(n) = 5 + floor( Sum_{j=1..n-1} a(j)/3 ).at n=29A120151
• Monotonic ordering of nonnegative differences 3^i-5^j, for 40>= i>=0, j>=0.at n=33A192149
• Numbers k for which there are no prime numbers in the range (k-4*sqrt(sqrt(k)), k].at n=11A192320
• Number of lower triangles of a 5 X 5 0..n array with each element differing from all of its horizontal and vertical neighbors by one.at n=8A195001
• Number of length 3 arrays x(i), i=1..3 with x(i) in i..i+n and no value appearing more than 2 times.at n=25A250352
• Where record values occur in A276781, when starting from A276781(2)=1.at n=49A276782