55108
domain: N
Appears in sequences
- Powers of fourth root of 8 rounded down.at n=21A018066
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MTW = ZSM-12 Nan[AlnSi28-nO56] starting with a T2 atom.at n=14A019198
- a(n) = [ (3rd elementary symmetric function of S(n))/(first elementary symmetric function of S(n)) ], where S(n) = {first n+2 odd positive integers}.at n=22A024202
- a(n) = Sum_{k=0..n} binomial(n,2k)*A002426(k).at n=13A162533
- Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 355", based on the 5-celled von Neumann neighborhood.at n=7A271398