19826

Appears in sequences

• Number of 7/3+-power-free words over the alphabet {0,1}.at n=37A082380
• Number of interval orders of magnitude n having no duplicate holdings (NODH).at n=5A112101
• Integer part of Gauss's Arithmetic-Geometric Mean M(2,n^4).at n=19A127765
• G.f.: 1/(1-x) = Sum_{n>=0} a(n)*x^n*Product_{k=1..n+1} (1-x^k).at n=29A209405
• Number of nondecreasing -n..n vectors of length 3 whose dot product with some nonincreasing -n..n vector equals 3.at n=24A226400
• a(n) = (n-1)*(n-2)*(n^2+9*n+12)/24.at n=25A323847