20078
domain: N
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 MFI = ZSM-5 Nan[AlnSi96-nO192] starting with a T9 atom.at n=13A019168
- Number of 0..n arrays x(0..9) of 10 elements with zero 5th differences.at n=38A200446
- Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^2<x^2+y^2.at n=30A211635
- Volume of the Johnson square pyramid (rounded down) with all the edge lengths equal to n.at n=43A229063
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 278", based on the 5-celled von Neumann neighborhood.at n=39A271097
- Number of n step self-avoiding walks on 3 X infinity grid starting from (0,0).at n=13A302408
- Number of fully recursively anti-transitive rooted trees with n nodes.at n=17A324840
- a(n) = floor(b(n)), where b(1) = 1 and b(n) = b(n-1) + Sum_{k=1..n-1} b(k)/(n-1).at n=39A376995