35406
domain: N
Appears in sequences
- Triangle T(n,k) (0 <= k <= n) giving number of chains of length k in partially ordered set formed from subsets of n-set by inclusion.at n=31A038719
- T(n,m) = Sum_{j=0..m} (-1)^(j + m)*(j + 1)^n*binomial(m, j) + Sum_{j=0..(n-m)} (-1)^(j - m + n )*(1 + j)^n*binomial(n-m, j).at n=31A156820
- T(n,m) = Sum_{j=0..m} (-1)^(j + m)*(j + 1)^n*binomial(m, j) + Sum_{j=0..(n-m)} (-1)^(j - m + n )*(1 + j)^n*binomial(n-m, j).at n=32A156820
- Numbers n such that n^6 + 545 is prime.at n=23A163592
- Number of non-equivalent (mod D_4) ways to arrange 3 points on an n X n square grid so that they are not collinear.at n=9A235454
- Number of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) 8.at n=8A245127
- a(1)=1, a(2)=2; thereafter a(n) = a(n-1) + a(n-1-(number of even terms so far)) + a(n-1-(number of odd terms so far)).at n=49A249039
- Third differences of seventh powers (A001015).at n=4A255181