21484

Appears in sequences

• a(n) = dot_product(1,2,...,n)*(4,5,...,n,1,2,3).at n=37A026040
• Number of right triangles on a (n+1)X7 grid.at n=16A189811
• Number of (w,x,y,z) with all terms in {0,...,n} and w=max{w,x,y,z}-min{w,x,y,z}; i.e., the range of (w,x,y,z) is its first term.at n=22A212744
• Number of distinct cyclic permutations of the partitions of n; see comments.at n=25A236292
• Numbers n such that n^2048 + (n+1)^2048 is prime.at n=21A274235
• Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=6A299084
• Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=2A299088
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=38A299089
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.at n=42A299089
• a(n) = 42*2^n - 20.at n=9A305064
• a(n) is the dimension of the Lie-admissible operad of degree n.at n=5A337017
• Number of compositions (ordered partitions) of n into an odd number of cubes.at n=55A339421
• Number of partitions of n with at most five part sizes.at n=38A364809