85242
domain: N
Appears in sequences
- a(n) = [ a(n-1)/a(1) ] + [ a(n-3)/a(3) ] + [ a(n-5)/a(5) ] + ..., for n >= 3.at n=42A022878
- a(n) = T(2*n,n), T given by A026736.at n=9A026737
- a(n) = T(n, floor(n/2)), T given by A026736.at n=18A026742
- Number of permutations avoiding the patterns {3241,3421,4321}; number of weak sorting class based on 3241.at n=10A111279