648418

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 VSV = VPI-7 Na26H6[Zn16Si56O144].44H2O starting from a T1 atom.at n=17A019260
• a(n) = Sum_{k=0..floor(5*n/9)} binomial(k,5*n-9*k).at n=42A392356