63008
domain: N
Appears in sequences
- Triangle read by rows: T(n,0)=1, T(n,n)=1, T(n, k) = 2*(n-k)*T(n-1, k-1) + 2*k*T(n-1, k).at n=31A099759
- Triangle read by rows: T(n,0)=1, T(n,n)=1, T(n, k) = 2*(n-k)*T(n-1, k-1) + 2*k*T(n-1, k).at n=32A099759
- Numbers that are equal to the sum of the number of divisors of their first k arithmetic derivatives, for some k.at n=44A269459
- Wiener index in diamond nanowires obtained by connecting n unit cells in a sequence.at n=7A366816