43310
domain: N
Appears in sequences
- a(n) is the number of forests with n nodes of rooted unlabeled identity trees.at n=16A052843
- Number of -2..2 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four, five, six or eight distinct values for every i,j,k<=n.at n=7A211591
- Numbers n = x0 x1 x2...x9 such that xi is the number of digits greater than i in n.at n=36A226195
- Number of integer compositions of n that are the first sums of some composition.at n=29A391683