1537536

Appears in sequences

• a(n) = 2^n*binomial(3*n,n)*(3*n+1).at n=5A072975
• A transform of binomial(n,5).at n=10A082139
• 6-quantum transitions in systems of N >= 6 spin 1/2 particles, in columns by combination indices.at n=21A213348
• 9-quantum transitions in systems of N >= 9 spin 1/2 particles, in columns by combination indices.at n=17A213351
• Maximum number of ways in which a set of integer-sided squares can tile an n X 3 rectangle.at n=22A362144
• Riordan array ((1-x)^(m-1), x/(1-x)) with factor r^(2*n) on row n, for m = 3/2, r = 2.at n=40A380851