103936

Appears in sequences

• a(n) = 2a(n-2) + 4a(n-3), n >= 3.at n=21A134812
• A triangular sequence based on concepts of operations on existing sequences: in this case the H(x,n) ( A060821) traditional Hermite is differentiated twice : p(x,n)=-x^2*H''(x,n)+H(x,n).at n=42A137449
• The right-hand half-triangle of A185356 (or A202690).at n=41A202815
• a(n) = n(p(n)-d(n)): sum of all of parts of all partitions of n with at least one distinct part.at n=27A220486
• Triangle read by rows: row n gives coefficients of expansion of Product_{k = 1..n-1} ((n + 1)*x + k), starting with lowest power.at n=23A220883
• Number of nX4 0..1 arrays with no element equal to more than one of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=17A280436
• Total number of factorial parts in all compositions of n.at n=15A309538
• Row sums of triangle A322730.at n=4A322733
• Triangle read by rows: T(n,k) is the number of ways of choosing a k-dimensional cube from the vertices of an n-dimensional hypercube; 0 <= k <= n.at n=48A346905
• Number of chordless cycles (of length >= 4) in the n-folded cube graph.at n=6A364687