217216
domain: N
Appears in sequences
- Number of irreducible Boolean polynomials of degree n.at n=19A169912
- Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 97", based on the 5-celled von Neumann neighborhood.at n=8A270153
- Expansion of g.f. A(x) satisfying A(x) = x + A(x/(1-x)) * A(x/(1+x)).at n=10A374569