22377

Appears in sequences

• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite NON = Nonasil-[ 4158 ] [Si88O176].4R starting with a T4 atom.at n=13A019212
• a(n) = Sum_{k=0..n} (k+1) * A026725(n, n-k).at n=11A027212
• Number of labeled 3-chromatic (i.e., chromatic number = 3) graphs on n nodes.at n=5A084271
• Expansion of Sum_{k>0} x^(3*k)/(1 - (k*x)^k)^3.at n=15A363652